Juvenile fiction 345 Documentary television programs 146 Periodicals 96 Nature television programs 89 Documentary films 84 Electronic books 83 Wildlife television programs 73 Juvenile literature 72 Nonfiction television programs 70 Folklore 32 Science television programs 29 Animal television programs 28 Pictorial works 26 Juvenile poetry 24 Educational films 18 Miscellanea 13 Short films 13 Anecdotes 12 History 12 Identification 12 Children's films 11 Science films 11 Electronic book 10 Fiction 10 Songs and music 10 Specimens 10 Classification 8 Educational television programs 8 Juvenile films 8 Television news programs 8 Biography 7 Congresses 6 Documentary 6 Poetry 6 Conference papers and proceedings 5 Juvenile works 5 Animated films 4 Case studies 4 Criticism, interpretation, etc 4 Field guides 4 Juvenile humor 4 Nomenclature (Popular) 4 Bibliography 3 Biographies 3 Encyclopedias, Juvenile 3 Exhibitions 3 Handbooks, manuals, etc 3 Sound recordings 3 Suites 3 Translations into English 3 sound recording 3 Animal films 2 Art music 2 Cases 2 Comic books, strips, etc 2 Congress 2 Congressen (vorm) 2 Early works to 1800 2 Exhibition catalogs 2 Filmed lectures 2 Guidebooks 2 Handbooks and manuals 2 Juvenile sound recordings 2 Popular works 2 Terms and phrases 2 Trivia and miscellanea 2 Waltzes (Music) 2 game 2 Adaptations 1 Bibliographies 1 Caricatures and cartoons 1 Collections 1 Drama 1 Easy books 1 Encyclopedias 1 Ethnographic films 1 Excerpts, Arranged 1 Experimental films 1 High interest-low vocabulary books 1 Humor 1 Identification guides 1 Instructional films 1 Interviews 1 Juvenile 1 Legends 1 Literary collections 1 Monologues (Music) 1 Music 1 Musical settings 1 Nature films 1 Nomenclature 1 Panel discussions 1 Readers (Publications) 1 Spanish language 1 Symphonic poems 1 Symphonies 1 Trials, litigation, etc 1 flash card 1