Classification
ACE - Germanic languages, Indo-Germanic languages
AXN - Phrase books, language courses
29
ACA - Languages, dictionaries - general
15
ACH - Romance languages
8
ACM - East european languages
7
TAA - Engineering sciences - reference books
5
YAB - Law, economy, social affairs - dictionaries
5
AHK - Scientific work
4
AAA - Encyclopedias - general aspects
3
YPB - Economy - general aspects
3
AHH - Universities - research
2
AMA - Education - general
2
YPGE - Human resource planning, human resource management
2
YRG - Technology transfer
2
AAD - General handbooks of knowledge
1
AHN - Media and communication science
1
ASAA - Library reference works
1
ASCJ - Library catalog
1
CAE - Chemistry - general
1
DPA - Electronic data processing - applications
1
EKA - Wind energy
1
HAA - Medicine - reference books
1
HAE - Popular medicine
1
TAB - Engineering sciences - dictionaries
1
TIE - Process engineering
1
YDX - Contract law
1
YFF - Industrial safety regulations
1
YPE - Job application, job search
1
YPH - Secretarial work, office management
1
ZAD - Book trade, publishing
1