Enna (6) Clark, Nancy L. (louisiana State University, Worger, William H. (university Of California (1) Dutton, George (1) Verma, Chandrabhan (king Fahd University Of Petroleum & Minerals (1) Peter The Late Francis (was Professor Of Volcanology, Was Professor Of Volcanology, Oppenheimer, Clive (is A Lecturer In Geography (1)