Yeskis, D., K. Chiu, S. Meyers, J. Weiss, and T. Bloom. 1988. A Field Study of
Various Sampling Devices and Their Effects on Volatile Organic Contaminants. Second
National Outdoor Action Conference on Aquifer Restoration, Ground Water Monitoring
and Geophysical Methods, NWWA, May 23 26, 1988, pp. 471 479.
Zohdy, A.A.R., G.P. Eaton, and D.R. Mabey. 1974. Application of Surface Geophysics
to Ground Water Investigations, Chapter D1, Electrical Methods, in Techniques of Water
Resource Investigations of the U.S. Geological Survey, 116 pp.