MacGregor, Ian D. “Mafic and Ultramafic Xenoliths from the Kao Kimberlite Pipe, Lesotho”. International Kimberlite Conference: Extended Abstracts 2, no. 1 (September 12, 1977): 198–199. Accessed May 4, 2024. https://ikcabstracts.com/index.php/ikc/article/view/989.