Thomas, R. W. 1927- Modelling in geography : a mathematical approach / R. W. Thomas & R. J. Huggett. - Totowa, N.J. : Barnes & Noble Books, 1980. - xii, 338 p. : ill. ; 24 cm. Includes Bibliography and index. ISBN: 0389200492 0389200506 (pbk.) Subjects--Topical Terms: Geography--Mathematical models. Dewey Class. No.: 910.0151 / THM 1980