Genre
- Periodicals 2,214 canlyniadau
- Congresses 342 canlyniadau
- Statistics 175 canlyniadau
- Biography 88 canlyniadau
- Handbooks, manuals, etc 56 canlyniadau
- Juvenile literature 51 canlyniadau
- Directories 47 canlyniadau
- Pictorial works 46 canlyniadau
- Cases 27 canlyniadau
- Anecdotes 25 canlyniadau
- Bibliography 24 canlyniadau
- Case studies 22 canlyniadau
- Newspapers 22 canlyniadau
- Guidebooks 19 canlyniadau
- Identification 19 canlyniadau
- Scores 18 canlyniadau
- Dictionaries 16 canlyniadau
- Early works to 1800 16 canlyniadau
- Observations 16 canlyniadau
- Vocal scores with piano 15 canlyniadau
- Catalogs 14 canlyniadau
- Maps 11 canlyniadau
- Exhibitions 8 canlyniadau
- Indexes 7 canlyniadau
- Encyclopedias 6 canlyniadau
- Excerpts 6 canlyniadau
- Juvenile fiction 5 canlyniadau
- Genealogy 4 canlyniadau
- Imprints 4 canlyniadau
- Portraits 4 canlyniadau
- Tables 4 canlyniadau
- Terminology 4 canlyniadau
- Abstracts 3 canlyniadau
- Decision making 3 canlyniadau
- Laboratory manuals 3 canlyniadau
- Musical settings 3 canlyniadau
- Reviews 3 canlyniadau
- Sources 3 canlyniadau
- Statistics, Medical 3 canlyniadau
- Classification 2 canlyniadau
- Databases 2 canlyniadau
- Drama 2 canlyniadau
- Examinations, questions, etc 2 canlyniadau
- Miscellanea 2 canlyniadau
- Posters 2 canlyniadau
- Texts 2 canlyniadau
- Atlases 1 canlyniadau
- Caricatures and cartoons 1 canlyniadau
- Charts, diagrams, etc 1 canlyniadau
- Constitution 1 canlyniadau rhagor...