Cole, Monica M. Land use studies in the Transvaal Lowveld : a contribution to the study of the opportunities and difficulties inherent in the savanna environment. - [London] : Geographical Publications, 1956. - World Land Use Survey. Occasional papers ; no. 1 . Bibliography: p. 40-41. Subjects--Topical Terms: Physical geography -- Transvaal.--Physical geography -- Transvaal.Agriculture -- Transvaal.--Agriculture -- Transvaal.