White, I. D. Environmental systems : an introductory text / I.D. White, D.N. Mottershead, S.J. Harrison. - London ; Boston : G. Allen & Unwin, 1984. - xv, 495 p. : ill. ; 25 cm. Includes index. Bibliography: p. 476-482. ISBN: 0045510652 (pbk.) 0045510644 LCCN: 83082358 Subjects--Topical Terms: Physical geography.Natural history. Dewey Class. No.: 551 / HAR