English alphabetical subject index to Universal Decimal Classification numbers used by the Bee Research Association in 'Apicultural Abstracts' and in subject indexes
Bee Research Association.
Chalfont St Peter (Hill House, Chalfont St Peter, Gerrards Cross, Bucks SL9 ONR) Bee Research Association
1971
Cover title: EASI 2. Tab indexed
Previous ed. 1968
Classification
Classification, Universal decimal.