Classification
CAA - Chemistry - reference books
8
DAA - Information technology - reference books
8
EAA - Energy - reference books
8
GAA - Geosciences - reference books
HAA - Medicine - reference books
8
LAA - Biology - reference books
8
PAA - Physics - reference books
8
TAA - Engineering sciences - reference books
7
AQPD - Bibliographies of theses / dissertations
4
YAA - Law, economy, social affairs - reference books
2
FAA - Materials research - reference books
1
MAA - Mathematics - reference books
1