Symonds, R. B., Ritchie, B. E., McGimsey, R. G., and Ort, M. O., 1996, Preliminary report on the 1995 Gas Seep and Spring sampling in the vicinity of Gas Rocks, South Shore Becharof Lake: U.S. Geological Survey Open File Report, p. unknown.
Citation Updated: 2005-06-10 00:04:12