Cita APA (7a ed.)
Lowenthal, D. (2003). George Perkins Marsh: Prophet of conservation. University of Washington Press.
Cita Chicago Style (17a ed.)
Lowenthal, David. George Perkins Marsh: Prophet of Conservation. Seattle, WA: University of Washington Press, 2003.
Cita MLA (9a ed.)
Lowenthal, David. George Perkins Marsh: Prophet of Conservation. University of Washington Press, 2003.
Precaución: Estas citas no son 100% exactas.