Budzikiewicz, Herbert Structure elucidation of natural products by mass spectrometry Herbert Budzikiewicz, Carl Djerassi and Dudley H. Williams. - San Francisco HoldenDay 1964 - xi, 233p. 30cm - (Holden-Day Series in physical technique in chemistry). . Subjects--Topical Terms: Nuclear spectroscopy Spectrum analysis. Dewey Class. No.: 547.72 / B94S