TY - BOOK AU - Melville,Robert S. TI - Selected approaches to gas chromatography-mass spectrometry U1 - 545.33082 PY - 0000///[n.d.] CY - Washington, D.C. PB - U.S. Government Printing Office KW - Mass spectrometry KW - Hydrocarbons KW - Spectra KW - Massaspectrometrie ER -