Advances in mass spectrometry : proceedings of a Joint Conference organized by the Hydrocarbon Research Group, Institute of Petroleum, and A.S.T.M. Committee E.14 and held in the University of London, 24th-26th September, 1958 - Joint Conference organized by Hydrocarbon Research Group, Institute of Petroleum and ASTM Committee E-14 on Mass Spectrometry; Waldron, J. D. (Pergamon)