Dyfyniad APA

Fetter, C. (1988). Applied hydrogeology (2nd ed.). Merrill Publishing.

Dyfyniad Arddull Chicago

Fetter, C.W. Applied Hydrogeology. 2nd ed. London: Merrill Publishing, 1988.

Dyfyniad MLA

Fetter, C.W. Applied Hydrogeology. 2nd ed. Merrill Publishing, 1988.

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