W.K. Hamblin, J.D. Howard: , EXERCISES IN PHYSICAL GEOLOGY 5. ed. Minneapolis, Minn. 1980, VII, 225 s., ill., 28 cm, Instructor's supplement IV, 68 s., ill. Paperback $ 9.95. Feffer and Simons Education Division, Sussex. - Hansen, Kaj (Geografisk Tidsskrift, 1981)