Cobban, W. A., Hook, S. C., & Kennedy, W. J. (1989). Upper Cretaceous rocks and ammonite faunas of southwestern New Mexico. New Mexico Bureau of Mines & Mineral Resources : Available from The Bureau.
Chicago Style (17th ed.) CitationCobban, William A., Stephen C. Hook, and W. J. Kennedy. Upper Cretaceous Rocks and Ammonite Faunas of Southwestern New Mexico. Socorro: New Mexico Bureau of Mines & Mineral Resources : Available from The Bureau, 1989.
MLA (9th ed.) CitationCobban, William A., et al. Upper Cretaceous Rocks and Ammonite Faunas of Southwestern New Mexico. New Mexico Bureau of Mines & Mineral Resources : Available from The Bureau, 1989.
Warning: These citations may not always be 100% accurate.