Ragan, D. M. (1973). Structural geology: An introduction to geometrical techniques (2nd ed.). Wiley Eastern.
शिकागो स्टाइल उद्धरणRagan, Donal M. Structural Geology: An Introduction to Geometrical Techniques. 2nd ed. New York: Wiley Eastern, 1973.
एमएलए उद्धरणRagan, Donal M. Structural Geology: An Introduction to Geometrical Techniques. 2nd ed. Wiley Eastern, 1973.
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