Robertson, E. C., Hays, J. F., & Knopoff, L. (1972). The Nature of the solid earth: Papers presented at a Symposium held at Harvard University, Cambridge, 16-18 April, 1970. New York: McGraw-Hill.
Παραπομπή Chicago StyleRobertson, Eugene C., James F. Hays, and Leon Knopoff. The Nature of the Solid Earth: Papers Presented At a Symposium Held At Harvard University, Cambridge, 16-18 April, 1970. New York: McGraw-Hill, 1972.
Παραπομπή MLARobertson, Eugene C., James F. Hays, and Leon Knopoff. The Nature of the Solid Earth: Papers Presented At a Symposium Held At Harvard University, Cambridge, 16-18 April, 1970. New York: McGraw-Hill, 1972.
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