West Texas Geological Society & Maxwell, R. A. (1949). Marathon region, Big Bend region, Green Valley-Paradise Valley region, Sierra Blanca region, Texas: November 6-9, 1949. The Society.
Chicago Style (17th ed.) CitationWest Texas Geological Society and Ross A. Maxwell. Marathon Region, Big Bend Region, Green Valley-Paradise Valley Region, Sierra Blanca Region, Texas: November 6-9, 1949. [Midland, Tex.]: The Society, 1949.
MLA (9th ed.) CitationWest Texas Geological Society and Ross A. Maxwell. Marathon Region, Big Bend Region, Green Valley-Paradise Valley Region, Sierra Blanca Region, Texas: November 6-9, 1949. The Society, 1949.
Warning: These citations may not always be 100% accurate.