McMurray, William F. & Lewis, James O. Underground Wastes in Oil and Gas Fields and Methods of Prevention. Washington D.C.. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc66456/. Accessed July 26, 2016.
Note: Inconsistencies in capitalization and punctuation within the Digital Library may affect this citation. Before using this citation in formal writing, please consult your preferred style manual. More information.