Iglesias, Eduardo R. Sampling Geopressured Fluids: Some Contributions from the Properties of the H{sub2}O-CH{sub4} System, article, August 18, 1980; (https://digital.library.unt.edu/ark:/67531/metadc884916/m1/1/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .