Liebenberg, E. C. The South African landscape : exercise manual for map and air photo interpretation / E. C. Liebenberg, P. J. Rootman [and] M. K. R. van Huyssteen. - Durban ; Woburn, Mass. : Butterworth, 1976. - 76 p., [3] leaves : maps (some col.) ; 30 cm. Includes index. Bibliography: leaf [2] ISBN: 0409097950 : R12.75 LCCN: 80450701 Nat. Bib. No.: SA77 Subjects--Topical Terms: Maps.Photographic interpretation.Geomorphology--South Africa. LC Class. No.: GA151 / .L53 Dewey Class. No.: 912/.68