TY  - BOOK
AU  - Gudzinowicz Benjamin J
AU  -  Gudzinowicz Michael J
TI  - Analysis of drugs and metabolites by gas chromatography mass spectrometry
U1  - F56:3,T5, L7.3 
PY  - 1977///
CY  - New York    
PB  -  Marcel Dekker       
KW  - Drug
ER  -