APA Style
Ritter,M.A. (1990).
Timber Bridges Design, Construction, Inspection, and Maintenance (USDA) .
USA:
USDA, Forest Service.
Chicago Style
Ritter,M.A.
Timber Bridges Design, Construction, Inspection, and Maintenance (USDA).
USA:
USDA, Forest Service,
1990.
.
MLA Style
Ritter,M.A.
Timber Bridges Design, Construction, Inspection, and Maintenance (USDA).
USA:
USDA, Forest Service,
1990.
.
Turabian Style
Ritter,M.A.
Timber Bridges Design, Construction, Inspection, and Maintenance (USDA).
USA:
USDA, Forest Service,
1990.
.