Vandeveer,Donald Pierce, C. (2003). The environmental ethics & policy book (Third.). Holly Allen.
Cita Chicago (17th ed.)Vandeveer,Donald Pierce, Christine. The Environmental Ethics & Policy Book. Third. Canada: Holly Allen, 2003.
Cita MLA (8th ed.)Vandeveer,Donald Pierce, Christine. The Environmental Ethics & Policy Book. Third. Holly Allen, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.