Hair, D. (1963). Economic importance of timber in the United States. U.S. Department of Agriculture, Forest Service.
Chicago-Zitierstil (17. Ausg.)Hair, Dwight. Economic Importance of Timber in the United States. Washington: U.S. Department of Agriculture, Forest Service, 1963.
MLA-Zitierstil (9. Ausg.)Hair, Dwight. Economic Importance of Timber in the United States. U.S. Department of Agriculture, Forest Service, 1963.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.