Genre
- Periodicals 106 bohtosa
- Congresses 48 bohtosa
- Statistics 39 bohtosa
- Juvenile literature 22 bohtosa
- Early works to 1800 16 bohtosa
- Bibliography 10 bohtosa
- Biography 9 bohtosa
- Case studies 9 bohtosa
- Handbooks, manuals, etc 7 bohtosa
- Dictionaries 5 bohtosa
- Pictorial works 5 bohtosa
- Sources 5 bohtosa
- Platforms 4 bohtosa
- Poetry 4 bohtosa
- Problems, exercises, etc 4 bohtosa
- Anecdotes 3 bohtosa
- Archives 3 bohtosa
- Charts, diagrams, etc 3 bohtosa
- Terminology 3 bohtosa
- Correspondence 2 bohtosa
- Databases 2 bohtosa
- Folklore 2 bohtosa
- Genealogy 2 bohtosa
- Textbooks 2 bohtosa
- Texts 2 bohtosa
- Translations into English 2 bohtosa
- Code numbers 1 bohtosa
- Fiction 1 bohtosa
- Glossaries, vocabularies, etc 1 bohtosa
- Indexes 1 bohtosa
- Interactive multimedia 1 bohtosa
- Interviews 1 bohtosa
- Readers 1 bohtosa
- Terms and phrases 1 bohtosa