Fassett, J. E., & Rigby, J. K. (1987). The Cretaceous-Tertiary boundary in the San Juan and Raton Basins, New Mexico and Colorado. Geological Society of America.
Chicago Style (17th ed.) CitationFassett, James E., and J. Keith Rigby. The Cretaceous-Tertiary Boundary in the San Juan and Raton Basins, New Mexico and Colorado. Boulder, Colo.: Geological Society of America, 1987.
MLA (9th ed.) CitationFassett, James E., and J. Keith Rigby. The Cretaceous-Tertiary Boundary in the San Juan and Raton Basins, New Mexico and Colorado. Geological Society of America, 1987.
Warning: These citations may not always be 100% accurate.