MCCALLUM, M.E.; COOPERSMITH, H. G.; HODGE, C.W. Mineralogical and textural-genetic classification of kimberlites in northern Colorado and southern Wyoming, U.S.A. International Kimberlite Conference: Extended Abstracts, [S. l.], v. 3, p. 209–209, 1982. DOI: 10.29173/ikc2265. Disponível em: https://ikcabstracts.com/index.php/ikc/article/view/2265. Acesso em: 5 may. 2024.