Electronic books 1,809 Periodicals 450 History 351 Instructional television programs 221 Case studies 176 Educational films 140 Congresses 130 Internet videos 130 Nonfiction television programs 123 Biography 111 Documentary television programs 110 Electronic book 106 Documentary films 89 Videorecording 87 Cross-cultural studies 80 Handbooks, manuals, etc 64 Conference papers and proceedings 56 Biographies 47 Statistics 40 Bibliography 36 Television news programs 36 Nonfiction films 34 Early works to 1800 29 Criticism, interpretation, etc 26 Instructional films 24 Dictionaries 19 Livres électronique 19 Interviews 18 Television interviews 18 Handbooks and manuals 17 Educational 14 Juvenile literature 14 Encyclopedias 13 Filmed lectures 13 Sources 13 Directories 10 Early works 10 Examinations 10 Longitudinal studies 10 Educational television programs 9 Filmed interviews 9 Feature films 8 Guide (Descripteur de forme) 8 Livres électroniques 7 Livres numériques 7 Television mini-series 7 Terminology 7 microform 7 Anecdotes 6 Computer network resources 6 Life skills guides 6 Abstracts 5 Congress 5 Drama 5 Examinations, questions, etc 5 Popular works 5 Textbooks 5 Aufsatzsammlung 4 Catalogs 4 Correspondence 4 Documentary 4 Fiction 4 Filmed speeches 4 Juvenile fiction 4 Newsreels 4 Short films 4 Study guides 4 videorecording 4 Cases 3 Church history 3 Film excerpts 3 Methods 3 Popular Work 3 electronic resource 3 Academic theses 2 Art 2 Autobiographies 2 Bibliographies 2 Biographical films 2 Congressen (vorm) 2 Controversial literature 2 Diaries 2 Einführung 2 Erlebnisbericht 2 Filmed panel discussions 2 Filmed performances 2 Indexes 2 Juvenile poetry 2 Lectures 2 Literary collections 2 Messages 2 Miscellanea 2 Outlines, syllabi, etc 2 Personal narratives 2 Pictorial works 2 Quotations, maxims, etc 2 Reality-based 2 Television programs 2 Television talk shows 2 Translations 2