TY  - BOOK
AU  - Budzikiwicz Herbert
AU  -  Djerassi Carl
TI  - Structure elucidation of natural products by mass spectrometry
T2  - Holden-Day series in physical techniques
U1  - E3051:5, K4.2 
PY  - 1964///
CY  - San Francisco 
PB  -  Holden-Day        
KW  -  Spectrometry
KW  - Chemistry
ER  -