Budzikiwicz Herbert Structure elucidation of natural products by mass spectrometry Budzikiwicz Herbert; Djerassi Carl - San Francisco Holden-Day 1964 - p. cm. - Holden-Day series in physical techniques . Standard No.: 48749 Source: Textual Subjects--Topical Terms: SpectrometryChemistry Dewey Class. No.: E3051:5, K4.2