Crank, J. The mathematics of diffusion / J. Crank - 2nd ed. - Oxford : Clarendon Press, c1975 - viii, 414 p. : ill., charts; 24 cm. Includes index Bibliography: p. 399-406 ISBN: 0198533446 : £ 12.50 Subjects--Topical Terms: Diffusion Dewey Class. No.: 532.7