Deltas in their geologic framework / ed . by Martha Lou Shirley and Assistant editor James A. Ragsdale.. Shirley, Martha Lou Ragsdale, James A.. Houston Geological Society. Research and Study Group. Gulf Coast Association of Geological Societies. Deltas. GB1205 .S513 916.21 SHD Includes papers presented at a symposium organized by the Research and Study Group of the Houston Geological Society at the October, 1965 meeting of the Gulf Coast Association of Geological Societies held in Houston. Includes bibliographies. Houston : Houston Geological Society, c1966. c1966. 1966 Text ix, 251 p. : eng