Landis, E. R. (1959). Coal resources of Colorado: Contributions to economic geology ; a highly detailed estimate of the reserves in coal bearing rocks, which underlie a quarter of the state. United States Government Printing Office.
Chicago Style (17th ed.) CitationLandis, Edwin R. Coal Resources of Colorado: Contributions to Economic Geology ; a Highly Detailed Estimate of the Reserves in Coal Bearing Rocks, Which Underlie a Quarter of the State. Washington: United States Government Printing Office, 1959.
MLA (9th ed.) CitationLandis, Edwin R. Coal Resources of Colorado: Contributions to Economic Geology ; a Highly Detailed Estimate of the Reserves in Coal Bearing Rocks, Which Underlie a Quarter of the State. United States Government Printing Office, 1959.
Warning: These citations may not always be 100% accurate.