Genre
Handbooks and manuals
20
Guidebooks
19
Tours
7
Maps
6
Literature
5
Conference papers and proceedings
4
Directories
4
Congresses
3
Dictionaries
3
Charts, diagrams, etc
2
Graphs
2
Identification
2
Statistics
2
Databases
1
Environmental impact statements
1
Festschriften
1
Laboratory manuals
1
Telephone directories
1