TY  - BOOK
AU  - Selwyn, Sydney
TI  - The Beta-Lactam Antibiotics : Penicillins and Cephalosporins in Perspective
SN  - 0-340-22523-8
PY  - 1980///
PB  - Hodder abd Stoughton
KW  - Beta-Lactam Antibiotics : Penicillins: Cephalosporins: P
ER  -