Fetter, C. W. (1988). Applied hydrogeology (2nd ed.). Merrill Pub. Co..
Chicago Style (17th ed.) ZitazioaFetter, C. W. Applied Hydrogeology. 2nd ed. Columbus, Ohio: Merrill Pub. Co., 1988.
MLA (9th ed.) ZitazioaFetter, C. W. Applied Hydrogeology. 2nd ed. Merrill Pub. Co., 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.