Keen, Michael John, 1935- An introduction to marine geology / by M. J. Keen. - Oxford : Pergamon Press, 1968. - ix, 218 p. : ill., maps. ; 23 cm. - Commonwealth and international library. Geophysics division . - Commonwealth and international library. Geophysics division . Bibliography : p. 201-213. ISBN: 0080125069 Subjects--Topical Terms: Submarine geology.Submarine topography.