Rosenthal, Eric. Encyclopaedia of Southern Africa compiled and edited by Eric Rosenthal. - 4th ed. - London, New York, F. Warne, 1967. - viii, 638 p. col. front., illus., plates (some col.), maps, tables, diagrs. 21 cm. ISBN: 0723201439 LC Class. No.: DT 729 / .R65 1967