Genre
- Case studies 683 canlyniadau
- Periodicals 511 canlyniadau
- Congresses 473 canlyniadau
- Handbooks, manuals, etc 291 canlyniadau
- Cross-cultural studies 262 canlyniadau
- Juvenile literature 210 canlyniadau
- Problems, exercises, etc 165 canlyniadau
- Biography 146 canlyniadau
- Statistics 128 canlyniadau
- Curricula 89 canlyniadau
- Bibliography 79 canlyniadau
- Longitudinal studies 61 canlyniadau
- Catalogs 43 canlyniadau
- Directories 34 canlyniadau
- Interviews 34 canlyniadau
- Juvenile fiction 32 canlyniadau
- Outlines, syllabi, etc 29 canlyniadau
- Early works to 1800 27 canlyniadau
- Juvenile 27 canlyniadau
- Encyclopedias 25 canlyniadau
- Textbooks 25 canlyniadau
- Anecdotes 13 canlyniadau
- Study guides 13 canlyniadau
- Popular works 12 canlyniadau
- Sources 12 canlyniadau
- Life skills guides 10 canlyniadau
- Textbooks for foreign speakers 10 canlyniadau
- Dictionaries 9 canlyniadau
- Texts 9 canlyniadau
- Archives 8 canlyniadau
- Databases 8 canlyniadau
- Indexes 8 canlyniadau
- Readers 8 canlyniadau
- Exhibitions 7 canlyniadau
- Miscellanea 7 canlyniadau
- Juvenile sound recordings 6 canlyniadau
- Pictorial works 6 canlyniadau
- Platforms 6 canlyniadau
- Audio-visual aids 5 canlyniadau
- Charts, diagrams, etc 5 canlyniadau
- Correspondence 5 canlyniadau
- Evaluation 5 canlyniadau
- Trials, litigation, etc 5 canlyniadau
- Drama 4 canlyniadau
- Examinations, questions, etc 4 canlyniadau
- Specimens 4 canlyniadau
- Terminology 4 canlyniadau
- Activity programs 3 canlyniadau
- Caricatures and cartoons 3 canlyniadau
- Case Studies 3 canlyniadau rhagor...