Hughes, D. J. (2009). An environmental history of the world: Humankind's changing role in the community of life (Second edition.). AUWSF (018249).
Chicago-Zitierstil (17. Ausg.)Hughes, Donald J. An Environmental History of the World: Humankind's Changing Role in the Community of Life. Second edition. London: AUWSF (018249), 2009.
MLA-Zitierstil (9. Ausg.)Hughes, Donald J. An Environmental History of the World: Humankind's Changing Role in the Community of Life. Second edition. AUWSF (018249), 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.