APA (7th ed.) Zitazioa
Flippen, J. B. (2000). Nixon and the environment. University of New Mexico Press.
Chicago Style (17th ed.) Zitazioa
Flippen, J. Brooks. Nixon and the Environment. Albuquerque: University of New Mexico Press, 2000.
MLA (9th ed.) Zitazioa
Flippen, J. Brooks. Nixon and the Environment. University of New Mexico Press, 2000.
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