Genre
- Bibliography 74 canlyniadau
- Catalogs 45 canlyniadau
- Biography 6 canlyniadau
- Genealogy 6 canlyniadau
- Periodicals 6 canlyniadau
- Specimens 6 canlyniadau
- Directories 4 canlyniadau
- Congresses 3 canlyniadau
- Exhibitions 3 canlyniadau
- Imprints 2 canlyniadau
- Maps 2 canlyniadau
- Abstracts 1 canlyniadau
- Anecdotes 1 canlyniadau
- Bathymetric maps 1 canlyniadau
- Case studies 1 canlyniadau
- Handbooks, manuals, etc 1 canlyniadau
- Humor 1 canlyniadau
- Indexes 1 canlyniadau
- Pictorial works 1 canlyniadau
- Union lists 1 canlyniadau