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Electronic books
526
Handbooks, manuals, etc
10
Problems, exercises, etc
8
Congresses
7
Biography
6
Pictorial works
6
Handbooks and manuals
4
Amateurs' manuals
2
Biographies
2
Cookbooks
2
Dictionaries
2
Instructional and educational works
2
Laboratory manual
2
Laboratory manuals
2
Problems and exercises
2
Software
2
Style manuals
2
Autobiographies
1
Case studies
1
Catalogs
1
Charts, diagrams, etc
1
Conference papers and proceedings
1
Correspondence
1
Designs and plans
1
Diaries
1
Early works to 1800
1
Electronic Books
1
Formulae, receipts, prescriptions
1
Illustrated works
1
Interviews
1
Miscellanea
1
Poetry
1
Programmed instruction
1
Textbooks
1