Kennedy, W. J., Cobban, W. A., & Landman, N. H. (1996). New records of acanthoceratid ammonoids from the Upper Cenomanian of South Dakota.
Chicago Style (17th ed.) CitationKennedy, W. J., William A. Cobban, and Neil H. Landman. New Records of Acanthoceratid Ammonoids from the Upper Cenomanian of South Dakota. New York, N.Y, 1996.
MLA (9th ed.) CitationKennedy, W. J., et al. New Records of Acanthoceratid Ammonoids from the Upper Cenomanian of South Dakota. 1996.
Warning: These citations may not always be 100% accurate.