Shafer, G. H. (1974). Ground-water resources of Duval County, Texas. Texas Water Development Board.
Chicago Style (17th ed.) CitationShafer, G. H. Ground-water Resources of Duval County, Texas. Austin: Texas Water Development Board, 1974.
MLA (8th ed.) CitationShafer, G. H. Ground-water Resources of Duval County, Texas. Texas Water Development Board, 1974.
Warning: These citations may not always be 100% accurate.