Hackett, R. L. (1992). Minnesota timber industry-an assessment of timber product output and use, 1992. St. Paul, Minnesota : U.S. Dept. of Agriculture Forest Service North Central Forest Experimental Station.
Style de citation Chicago (17e éd.)Hackett, Ronald L. Minnesota Timber Industry-an Assessment of Timber Product Output and Use, 1992. St. Paul, Minnesota : U.S. Dept. of Agriculture Forest Service North Central Forest Experimental Station, 1992.
Style de citation MLA (8e éd.)Hackett, Ronald L. Minnesota Timber Industry-an Assessment of Timber Product Output and Use, 1992. St. Paul, Minnesota : U.S. Dept. of Agriculture Forest Service North Central Forest Experimental Station, 1992.
Style de citation IICA/CATIEHackett, R. L. 1992. Minnesota timber industry-an assessment of timber product output and use, 1992. St. Paul, Minnesota : U.S. Dept. of Agriculture Forest Service North Central Forest Experimental Station.