de Villiers,Johan. (2008). Herinneringe aan Professor P.J. van der Merwe, 1912-1979. Historical Association of South Africa.
Chicago Style (17th ed.) Citationde Villiers,Johan. Herinneringe Aan Professor P.J. Van Der Merwe, 1912-1979. Historical Association of South Africa, 2008.
MLA (8th ed.) Citationde Villiers,Johan. Herinneringe Aan Professor P.J. Van Der Merwe, 1912-1979. Historical Association of South Africa, 2008.
IICA/CATIE Citationde Villiers,Johan. 2008. Herinneringe aan Professor P.J. van der Merwe, 1912-1979. Historical Association of South Africa.