Fischer, D. W., & Rygh, M. E. (1989). A synoptic overview of the Bakken Formation in portions of Billings, Golden Valley, and McKenzie Counties, North Dakota.
Chicago Style (17th ed.) CitationFischer, David W., and Marvin E. Rygh. A Synoptic Overview of the Bakken Formation in Portions of Billings, Golden Valley, and McKenzie Counties, North Dakota. Grand Forks, N.D, 1989.
MLA (9th ed.) CitationFischer, David W., and Marvin E. Rygh. A Synoptic Overview of the Bakken Formation in Portions of Billings, Golden Valley, and McKenzie Counties, North Dakota. 1989.
Warning: These citations may not always be 100% accurate.