Roberts, John L. 1936- The Macmillan field guide to geological structures / John L. Roberts. - London : Macmillan ; Pergamon Press, 1989. - 250 p. : ill. (col.) - Pergamon international library of science, technology, engineering, and social studies . ISBN: 0333421493 : $40.00 (est.) LCCN: 91014074 Subjects--Topical Terms: Geology--Maps.Geology, Structural.