APA Style
Sowder,M. (1966).
Christmas Trees The Tradition and the Trade (USDA) .
Washington,D.C:
USDA Forest Service.
Chicago Style
Sowder,M.
Christmas Trees The Tradition and the Trade (USDA).
Washington,D.C:
USDA Forest Service,
1966.
.
MLA Style
Sowder,M.
Christmas Trees The Tradition and the Trade (USDA).
Washington,D.C:
USDA Forest Service,
1966.
.
Turabian Style
Sowder,M.
Christmas Trees The Tradition and the Trade (USDA).
Washington,D.C:
USDA Forest Service,
1966.
.