Padovani, Elaine R., and James L. Carter. “Granulite Facies Xenoliths from Kilbourne Hole Maar, New Mixico Maar, New Mexico, and Their Bearing on Deep Crustal Evolution”. International Kimberlite Conference: Extended Abstracts, vol. 2, no. 1, Sept. 1977, pp. 257-4, doi:10.29173/ikc1010.