Genre
Congresses
33
Handbooks, manuals, etc
20
Periodicals
9
Case studies
8
Specifications
8
Standards
4
Dictionaries
2
Pictorial works
2
Tables
2
20th century
1
21st century
1
Catalogs
1
Charts, diagrams, etc
1
Databases
1
Drawings
1
Electronic books
1
Evaluation
1
Exhibitions
1
Forms
1
Juvenile literature
1
Observations
1
Problems, exercises, etc
1