Genre
- Electronic books 1.266 Treffer
- Congresses 74 Treffer
- Textbooks 52 Treffer
- Handbooks, manuals, etc 40 Treffer
- Laboratory manuals 12 Treffer
- Biography 10 Treffer
- Dictionaries 10 Treffer
- Examinations, questions, etc 10 Treffer
- Popular works 10 Treffer
- Problems, exercises, etc 10 Treffer
- Formulae, receipts, prescriptions 4 Treffer
- Identification 4 Treffer
- Study guides 4 Treffer
- Tables 4 Treffer
- Encyclopedias 2 Treffer
- Experiments 2 Treffer
- General 2 Treffer
- Humor 2 Treffer
- Interviews 2 Treffer
- Juvenile literature 2 Treffer
- Materials 2 Treffer
- Methods 2 Treffer
- Nomenclature 2 Treffer
- Observations 2 Treffer
- Outlines, syllabi, etc 2 Treffer
- Patents 2 Treffer
- Periodicals 2 Treffer