Genre
Electronic books
708
Internet resources
317
Handbooks, manuals, etc
61
Computer network resources
60
Outlines, syllabi, etc
24
Case studies
9
Problems, exercises, etc
8
Study guides
8
Amateurs' manuals
6
Tables
6
Formulae
4
Textbooks
4
Design and construction
2
Terminology
2
methods
2
Charts, diagrams, etc
1
Classification
1
Observations
1
Programming
1
Standards
1
research
1