APA (7th ed.) Citation

Directory of producers and drilling contractors: Rocky Mountain Region, Williston Basin, New Mexico. C. L. Cooper.

Chicago Style (17th ed.) Citation

Directory of Producers and Drilling Contractors: Rocky Mountain Region, Williston Basin, New Mexico. Tulsa, Okla.: C. L. Cooper.

MLA (9th ed.) Citation

Directory of Producers and Drilling Contractors: Rocky Mountain Region, Williston Basin, New Mexico. C. L. Cooper.

Warning: These citations may not always be 100% accurate.