Die geskiedenis van die skaapboerdery in Suid-Afrika,
deur H.B. Thom.
- Amsterdam, N. V. Swets & Zeitlinger, 1936.
- xxii, 396 p. : illus. (incl. maps), diagrs. ; 25 cm.
Originally written as a thesis (Ph. D.) for the University of Stellenbosch, and now issued in printed form, revised and enlarged. cf. Publisher's circular and Voorwoord.