Periodicals 17,167 Statistics 11,512 Electronic books 11,182 History 6,860 Legislative hearings 3,447 Congresses 3,130 Conference papers and proceedings 2,279 Early works to 1800 2,206 Case studies 1,454 Dictionaries 1,344 Legislative materials 1,305 Handbooks, manuals, etc 1,255 Directories 1,195 Early works 1,079 Government publications 971 Sources 959 Academic theses 919 Broadsides 724 Bibliography 715 Handbooks and manuals 687 Thèses et écrits académiques 657 Rules and practice 653 Pamphlets 640 Rules 483 Electronic journals 445 Internet videos 439 Biography 402 dissertations 362 doctoral dissertations 341 theses 341 masters theses 340 Trials, litigation, etc 336 Printed ephemera 315 Academic Dissertation 287 Statutes and codes 261 Biographies 259 Bibliographies 255 Périodiques 231 Posters 224 Databases 218 Cases 193 Legislative histories 186 Périodiques 186 Hochschulschrift 182 Speeches in Congress 178 Serial publications 173 Interviews 164 Statistiques 163 Educational films 148 Video recordings 139 Problems, exercises, etc 137 Electronic book 136 Computer network resources 133 Tables 129 Congress 128 Periodical 118 Catalogs 117 Congrès 116 Documentary films 116 Correspondence 115 Television news programs 113 Technical reports 110 Speeches 108 Annual reports 107 Fiction 106 Congressional addresses 103 Terminology 101 Church history 100 Newspapers 98 Aufsatzsammlung 96 Records and correspondence 95 Blank forms 92 Congrès 92 Encyclopedias 91 Maps 89 Tracts (literary works) 89 Indexes 88 Problems and exercises 86 Textbooks 86 Electronic government information 84 Études de cas 82 Study guides 81 Account books 79 Downloadable audio book 79 Festschriften 79 Pictorial works 79 Streaming audio 79 Guides et manuels 78 Treaties 72 Trial and arbitral proceedings 72 reference 72 referencia 72 référence bibliographique 72 bibliography 69 periodicals 69 Dictionnaires 67 Guides, manuels, etc 67 bibliografía 67 bibliographie 67 Annotations (Provenance) 66