Genre
Congresses
114
Handbooks, manuals, etc
40
Periodicals
18
Case studies
16
Pictorial works
10
Amateurs' manuals
9
Problems, exercises, etc
6
Biography
4
Designs and plans
2
Popular works
2
Catalogs
1
Charts, diagrams, etc
1
Computer simulation
1
Design and construction
1
Drawings
1
Exhibitions
1
Formulae
1
Guidebooks
1
Juvenile literature
1
Safety measures
1
Specifications
1
Standards
1
Textbooks
1