Author: Sickman, L.C.S. (Laurence C. S.);| Soper, Alexander Coburn, 1904-1971.Statement: Laurence Sickman and Alexander Soper.Publisher: Harmondsworth : PenguinYear: 1971ISBN: 0140561102Class: 702.22Code: SICNotes: 5th reprint, 1988.