APA Style
Worthington,N.P. (1961).
Commercial Thinning of Douglas-Fir in the Pacific Northwest (USDA) .
Washington,D.C:
USDA Forest Service.
Chicago Style
Worthington,N.P.
Commercial Thinning of Douglas-Fir in the Pacific Northwest (USDA).
Washington,D.C:
USDA Forest Service,
1961.
.
MLA Style
Worthington,N.P.
Commercial Thinning of Douglas-Fir in the Pacific Northwest (USDA).
Washington,D.C:
USDA Forest Service,
1961.
.
Turabian Style
Worthington,N.P.
Commercial Thinning of Douglas-Fir in the Pacific Northwest (USDA).
Washington,D.C:
USDA Forest Service,
1961.
.