Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Warren, Debra D. and United States. Dept. of Agriculture","Production, prices, employment, and trade in northwest forest industries, fourth quarter 1993",,"United States Department of Agriculture, Forest Service, Pacific Northwest Research Station",1994,USDA Forest Service resource bulletin PNW,,,,https://cir.nii.ac.jp/crid/1130854029791079062