APA (7th ed.) Citation

Beal, W. A., Murphy, E. C., & Kehew, A. E. (1987). Migration of contaminants from buried oil-and-gas drilling fluids within the glacial sediments of north-central North Dakota.

Chicago Style (17th ed.) Citation

Beal, William A., Edward C. Murphy, and Alan E. Kehew. Migration of Contaminants from Buried Oil-and-gas Drilling Fluids Within the Glacial Sediments of North-central North Dakota. Grand Forks, N.D, 1987.

MLA (9th ed.) Citation

Beal, William A., et al. Migration of Contaminants from Buried Oil-and-gas Drilling Fluids Within the Glacial Sediments of North-central North Dakota. 1987.