Borden, A. N. (2014). Outdoor recreation in the Northern United States and projected outlook to 2060. Nova Publishers.
Chicago-Zitierstil (17. Ausg.)Borden, Alexander N. Outdoor Recreation in the Northern United States and Projected Outlook to 2060. New York: Nova Publishers, 2014.
MLA-Zitierstil (9. Ausg.)Borden, Alexander N. Outdoor Recreation in the Northern United States and Projected Outlook to 2060. Nova Publishers, 2014.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.