Wilding, M.C., B. Harte, and J.W. Harris. “Inclusion Chemistry, Carbon Isotopes and Nitrogen Distribution in Bultfontein Diamonds”. International Kimberlite Conference: Extended Abstracts 5 (February 1, 1991): 459–459. Accessed April 19, 2024. https://ikcabstracts.com/index.php/ikc/article/view/2604.