United States Congress. House. Committee on Ways and Means 4,616
United States Internal Revenue Service 3,220
United States Congress. Senate. Committee on Finance 3,184
United States Congress. Joint Committee on Taxation 3,105
Organisation for Economic Co-operation and Development 2,851
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United States Congress 2,000
United States 1,581
Library of Congress Congressional Research Service 1,519
International Monetary Fund 1,059
United States Congress. Joint Committee on Taxation 950
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Commerce Clearing House 764
National Bureau of Economic Research 718
United States Department of the Treasury 698
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England and Wales Parliament 627
United States General Accounting Office 606
Great Britain 563
France 538
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United States Congress. House. Committee on Ways and Means. Subcommittee on Select Revenue Measures 522
Practising Law Institute 466
Great Britain Parliament. House of Commons 445
England and Wales 432
United States Congress. House. Committee on Ways and Means 424
United States Congress. House. Committee on Ways and Means. Subcommittee on Oversight 417
Massachusetts Treasury Office 359
United States Congress. Joint Economic Committee 341
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United States Congressional Budget Office 333
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Price, Waterhouse & Co 242
Foreign Office 233
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Gravelle, Jane 225
United States Congress. House. Committee on Rules 220
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France Sovereign (1715-1774 : Louis XV) 214
France Conseil d'État 212
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United States Congress. Senate. Committee on Finance. Subcommittee on Taxation and Debt Management 207
Germany 204
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New York (State) 194
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United States Congress. Senate. Committee on Finance. Subcommittee on Taxation and Debt Management Generally 192
Ḳol Yiśraʼel 187
Confederate States of America Congress. House of Representatives 184
SpringerLink (Online service) 180
Canadian Tax Foundation 179
Japan 178
United States Department of State 176
Prentice-Hall, inc 170
Price Waterhouse (Firm) 170
United States Congress. House. Committee on the Budget 153
Great Britain Parliament 152
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Tax Foundation 150
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France Conseil d'Etat 144
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Spain 141
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CCH Incorporated 139
Great Britain Exchequer 139
California 137
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United States Supreme Court 135
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Great Britain Commissioners of Excise 123
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United States Congress. House. Committee on the Judiciary. Subcommittee on Commercial and Administrative Law 120
Seligman, Edwin R. A (Edwin Robert Anderson), 1861-1939 119
United States Bureau of Internal Revenue 119
United States Dept. of the Treasury 118
China 116
American Law Institute 115
United States Bureau of the Census 115
Prentice-Hall, Inc 114
Mexico 113
United States Congress. Senate. Committee on Finance. Subcommittee on Energy and Agricultural Taxation 113