Cornwall, Ian Wolfram. Ice ages; their nature and effects [by] Ian Cornwall. - London, New York, London, New York, J. Baker; Humanities Press J. Baker; Humanities Press [1970] Bibliography: p. 179-189. ISBN: 0391000942 LCCN: 73018058 Nat. Bib. No.: B*** Subjects--Topical Terms: Glacial epoch. LC Class. No.: QE697 / .C7 1970 Dewey Class. No.: 551.7/92