TY  - BOOK
AU  - Budzikiewicz Herbert
AU  - Djerassi Carl
AU  - Williams D H
TI  - Structure elucidation of natural products by mass spectrometry
U1  - 547.7 
PY  - 1964///
CY  - San Francisco
PB  - Holdden-Day
KW  - Macromolecular compounds
KW  - Mass spectrometry
KW  - Steroids
N1  - V1 : Alkaloids V2 : Steroids, terpenoids, sugar and miscellaneous classes
ER  -