TY - BOOK AU - Budzikiewicz,Herbert AU - Djerassi,Carl AU - Williams,Dudley H. TI - Structure elucidation of natural products by mass spectrometry AV - QD415 .B74 PY - 1964/// CY - San Francisco PB - Holden-Day KW - Biochemistry KW - Mass spectrometry N1 - Companion volume to the author's Interpretation of mass spectra of organic compounds; Includes bibliographies; v. 1. Alkaloids.--v. 2. Steroids, terpenoids, sugars, and miscellaneous classes ER -