Gass, T. E., Lehr, J. H., & Heiss, H. W. (1977). Impact of abandoned wells on ground water. Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory.
Chicago Style (17th ed.) CitationGass, Tyler E., Jay H. Lehr, and Harold W. Heiss. Impact of Abandoned Wells on Ground Water. Washington: Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory, 1977.
MLA (9th ed.) CitationGass, Tyler E., et al. Impact of Abandoned Wells on Ground Water. Environmental Protection Agency, Office of Research and Development, Robert S. Kerr Environmental Research Laboratory, 1977.
Warning: These citations may not always be 100% accurate.