APA Style
Barcia,D.R and Merkel,E.P. (1972).
Bibliography on Insects Destructive to Flowers, Cones, and Seeds of North American Conifers (USDA) .
North Carolina:
USDA Forest Service.
Chicago Style
Barcia,D.R and Merkel,E.P.
Bibliography on Insects Destructive to Flowers, Cones, and Seeds of North American Conifers (USDA).
North Carolina:
USDA Forest Service,
1972.
.
MLA Style
Barcia,D.R and Merkel,E.P.
Bibliography on Insects Destructive to Flowers, Cones, and Seeds of North American Conifers (USDA).
North Carolina:
USDA Forest Service,
1972.
.
Turabian Style
Barcia,D.R and Merkel,E.P.
Bibliography on Insects Destructive to Flowers, Cones, and Seeds of North American Conifers (USDA).
North Carolina:
USDA Forest Service,
1972.
.