Genre
- Congresses 117 canlyniadau
- Problems, exercises, etc 78 canlyniadau
- Study guides 45 canlyniadau
- Interactive multimedia 30 canlyniadau
- Periodicals 24 canlyniadau
- Juvenile literature 21 canlyniadau
- Handbooks, manuals, etc 20 canlyniadau
- Genealogy 12 canlyniadau
- Textbooks for foreign speakers 11 canlyniadau
- Exhibitions 9 canlyniadau
- Indexes 9 canlyniadau
- Self-instruction 8 canlyniadau
- Pictorial works 7 canlyniadau
- Software 7 canlyniadau
- Databases 5 canlyniadau
- Encyclopedias 5 canlyniadau
- Guidebooks 5 canlyniadau
- Textbooks 5 canlyniadau
- Case studies 4 canlyniadau
- Catalogs 4 canlyniadau
- Dictionaries 4 canlyniadau
- Maps 4 canlyniadau
- Popular works 4 canlyniadau
- Bibliography 3 canlyniadau
- Biography 3 canlyniadau
- Examinations 3 canlyniadau
- Examinations, questions, etc 3 canlyniadau
- Identification 3 canlyniadau
- Laboratory manuals 3 canlyniadau
- Sound recordings for English speakers 3 canlyniadau
- Statistics 3 canlyniadau
- Tables 3 canlyniadau
- Designs and plans 2 canlyniadau
- Elementary works 2 canlyniadau
- Fiction 2 canlyniadau
- Folklore 2 canlyniadau
- Juvenile 2 canlyniadau
- Juvenile software 2 canlyniadau
- Nomenclature 2 canlyniadau
- Observations 2 canlyniadau
- Sources 2 canlyniadau
- Terminology 2 canlyniadau
- Acronyms 1 canlyniadau
- Anecdotes 1 canlyniadau
- Audio-visual aids 1 canlyniadau
- Classification 1 canlyniadau
- Concordances 1 canlyniadau
- Diaries 1 canlyniadau
- Drama 1 canlyniadau
- Early works to 1800 1 canlyniadau rhagor...