Eyle, A. (1992). Charles Lathrop Pack: Timberman, forest conservationist, and pioneer in forest education. ESF College Foundation, College of Environmental Science and Forestry.
Chicago-Zitierstil (17. Ausg.)Eyle, Alexandra. Charles Lathrop Pack: Timberman, Forest Conservationist, and Pioneer in Forest Education. Syracuse, NY: ESF College Foundation, College of Environmental Science and Forestry, 1992.
MLA-Zitierstil (9. Ausg.)Eyle, Alexandra. Charles Lathrop Pack: Timberman, Forest Conservationist, and Pioneer in Forest Education. ESF College Foundation, College of Environmental Science and Forestry, 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.