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General geology, petroleum appraisal, and nature of environmental hazards, eastern Pacific shelf, latitude 28⁰ to 38⁰ north
Howell, D. G.1978
Cretaceous geology of the California coast ranges, west of the San Andreas Fault, October 14, 1977
Howell, D. G.1977
Report of a study of the establishment of a school of veterinary medicine in the Atlantic Region
Howell, D. G.1975