Genre
Conference papers and proceedings
19
Environmental impact statements
17
Handbooks and manuals
17
Legislative materials
17
Technical reports
13
Legislative hearings
5
Periodicals
4
Academic theses
3
Case studies
3
Bibliographies
2
Congresses
2
Maps
2
Statutes and codes
2
Dictionaries
1
Government publications
1
Interactive multimedia
1
Laboratory manuals
1
Newsletters
1
Prospectuses
1
Serial publications
1
Statistics
1
Video recordings
1
World maps
1