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Gilluly J, Waters A C & Woodford A O. (1959). Principles of geology. : .
Gilluly J, Waters A C and Woodford A O. 1959. Principles of geology. : .
Gilluly J, Waters A C and Woodford A O. (1959). Principles of geology. : .
Gilluly J, Waters A C and Woodford A O. Principles of geology. : . 1959.