Lotz, Jan. "Purchase and Sale." Southern Cross: Civil Law and Common Law in South Africa. : Oxford University Press, 1996-11-07. Oxford Scholarship Online. 2012-03-22. Date Accessed 25 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198260875.001.0001/acprof-9780198260875-chapter-12>.
Lotz, J.(1996-11-07). Purchase and Sale. In Southern Cross: Civil Law and Common Law in South Africa. : Oxford University Press. Retrieved 25 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198260875.001.0001/acprof-9780198260875-chapter-12.
Lotz, Jan. "Purchase and Sale." In Southern Cross: Civil Law and Common Law in South Africa. : Oxford University Press, 1996-11-07. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198260875.001.0001/acprof-9780198260875-chapter-12.
Lotz J. Purchase and Sale. In: Zimmermann R, Visser D. Southern Cross: Civil Law and Common Law in South Africa. Oxford University Press; 1996. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780198260875.001.0001/acprof-9780198260875-chapter-12. Accessed May 25, 2013.