West Coast Tree Improvement Programs: a break-even, cost benefit analysis.
Ledig, F.Thomas
West Coast Tree Improvement Programs: a break-even, cost benefit analysis. - 1981. - s. [2], 8 : tab. ; 27 cm. - PSW-156 . - Research Paper. Pacific Northwest Forest and Range Experiment Station PSW-156 .
bibliogr. = USDA For. Serv. Res. Pap.
West Coast Tree Improvement Programs: a break-even, cost benefit analysis. - 1981. - s. [2], 8 : tab. ; 27 cm. - PSW-156 . - Research Paper. Pacific Northwest Forest and Range Experiment Station PSW-156 .
bibliogr. = USDA For. Serv. Res. Pap.