Genre
Congresses
19
Conference papers and proceedings
15
Congrès
14
Actes de congrès
5
Guidebooks
4
Guides
4
Congress
3
Guides touristiques
3
Kongress
3
travel guidebooks
3
Aufsatzsammlung
2
Specimens
2
Authors' autographs (Provenance)
1
Biography
1
Birmingham (1974)
1
Field guides
1
Guidebook
1
Identification
1
Konferenzschrift
1
Kongress (1989)
1
Kongress (Pittsburgh, Pa., 1987)
1
Kongreß
1
Maps
1
Pictorial works
1
Pittsburgh (Pa., 1987)
1
Spécimens
1