Welsch, R. L. (1982). Of trees and dreams: The fiction, fact, and folklore of tree-planting on The Northern Plains. Nebraska Forest Service.
Chicago-Zitierstil (17. Ausg.)Welsch, Roger L. Of Trees and Dreams: The Fiction, Fact, and Folklore of Tree-planting on The Northern Plains. Lincoln, Neb: Nebraska Forest Service, 1982.
MLA-Zitierstil (9. Ausg.)Welsch, Roger L. Of Trees and Dreams: The Fiction, Fact, and Folklore of Tree-planting on The Northern Plains. Nebraska Forest Service, 1982.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.