Genre
- Case studies 26 canlyniadau
- Handbooks, manuals, etc 4 canlyniadau
- Biography 3 canlyniadau
- Interviews 3 canlyniadau
- Periodicals 3 canlyniadau
- Early works to 1800 2 canlyniadau
- Anecdotes 1 canlyniadau
- Drama 1 canlyniadau
- Quotations, maxims, etc 1 canlyniadau
- Statistics 1 canlyniadau
- Terminology 1 canlyniadau
- Études de cas 1 canlyniadau