TY  - BOOK
ED  - World Health Organisation (WHO)
TI  - WHO Expert Committee on Biological Standardization: Twentieth Report
T2  - World Health Organisation Techenical Report Series
U1  - 610.621 
PY  - 1968///
CY  - Geneva
PB  - World Health Organisation
KW  - Biological Standasrtization
KW  - Report
N1  - Antibiotics -- Antigens -- Antibodies -- Biological Reference Reagents -- Requirements for biological substances
ER  -