APA (7th ed.) Citation

Robertson, C. E. (1971). Evaluation of Missouri's coal resources. Missouri Geological Survey and Water Resources.

Chicago Style (17th ed.) Citation

Robertson, Charles E. Evaluation of Missouri's Coal Resources. Rolla: Missouri Geological Survey and Water Resources, 1971.

MLA (9th ed.) Citation

Robertson, Charles E. Evaluation of Missouri's Coal Resources. Missouri Geological Survey and Water Resources, 1971.