Hair, D. (1963). Economic importance of timber in the United States. U.S. Department of Agriculture, Forest Service.
Chicago-čujuhus (17. p.)Hair, Dwight. Economic Importance of Timber in the United States. Washington: U.S. Department of Agriculture, Forest Service, 1963.
MLA-čujuhus (9. p.)Hair, Dwight. Economic Importance of Timber in the United States. U.S. Department of Agriculture, Forest Service, 1963.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.