Electronic books 10,944 Congresses 10,158 History 7,934 Conference papers and proceedings 7,157 Periodicals 6,942 Statistics 1,700 Case studies 1,303 Biography 1,003 Bibliography 904 Sources 729 Academic theses 695 Biographies 607 Thèses et écrits académiques 560 reference 525 referencia 525 référence bibliographique 525 bibliographie 520 bibliography 520 bibliografía 518 Early works to 1800 509 Interviews 503 Television news programs 422 graph 401 graphique 401 gráfico 400 Dictionaries 392 Bibliographies 361 Festschriften 339 Aufsatzsammlung 337 Legislative hearings 318 Electronic journals 284 Academic Dissertation 278 dissertations 278 Congrès 260 Early works 260 theses 253 doctoral dissertations 252 masters theses 252 Handbooks, manuals, etc 205 Internet videos 204 Conference papers and proceedings 174 Video recordings 163 carte géographique 161 map 161 mapa 161 Actes de congrès 159 Forecasts 158 Handbooks and manuals 153 Electronic book 143 Périodiques 139 Hochschulschrift 138 Documentary films 134 Kongress 128 Catalogs 126 Computer network resources 124 Platforms 123 Radio news programs 120 Directories 116 Périodiques 114 Statutes and codes 113 Government publications 110 Congress 105 Oral histories (literary works) 105 Chronology 103 Pamphlets 96 Political platforms 91 Miscellanea 89 Congrès 87 Essays 86 Serial publications 83 Études de cas 81 Correspondence 80 Maps 79 Nonfiction films 77 Messages 70 Speeches 69 Technical reports 68 Commercial treaties 67 Abstracts 66 Chronologies 65 Autobiographies 64 Konferenzschrift 63 national plan 63 plan nacional 63 plan national 63 Indexes 61 Cross-cultural studies 60 CD-ROMs 58 Educational films 56 Fiction 56 Pictorial works 55 Congresses (form) 54 Statistiques 48 DVD-Video discs 46 Legislative materials 45 Documentary television programs 42 Feature films 42 Encyclopedias 41 Legislative histories 41 case study 41