Classification
AAA - Encyclopedias - general aspects
58
ZAA - Books - general
58
ZBB - Library staff
2
ZBEB - Catalogues, cataloguing
2
ZCB - Information science
2
ZCD - Information retrieval
2
ZAD - Book trade, publishing
1
ZBAA - General (incl. bibliographies)
1
ZBDA - Library management
1
ZBDB - Quality management
1
ZBDC - Library marketing
1
ZBEC - Reader services, inquiry service
1
ZBECA - Circulation
1
ZBH - Digital library
1
ZBHA - Library systems
1
ZBJ - Library types
1
ZCA - Documentation
1
ZCE - Bibliometrics
1