APA Style
Alexander,R.R. (1982).
Engelmann Spruce Seed Production on the Fraser Experimental Forest, Colorado (USDA) .
Colorado:
USDA Forest Service.
Chicago Style
Alexander,R.R.
Engelmann Spruce Seed Production on the Fraser Experimental Forest, Colorado (USDA).
Colorado:
USDA Forest Service,
1982.
.
MLA Style
Alexander,R.R.
Engelmann Spruce Seed Production on the Fraser Experimental Forest, Colorado (USDA).
Colorado:
USDA Forest Service,
1982.
.
Turabian Style
Alexander,R.R.
Engelmann Spruce Seed Production on the Fraser Experimental Forest, Colorado (USDA).
Colorado:
USDA Forest Service,
1982.
.