TY  - BOOK
ED  - National Academy of Sciences (U.S.)
TI  - The chemistry of penicillin
PY  - 1949///
CY  - Princeton, N. J., 
PB  - Princeton Univ. Press, 
KW  - Penicillins
N1  - Compiled under the auspices of the National Academy of Sciences, Washington, D. C., pursuant to a contract with the Office of Scientific Research and Development
ER  -