APA Style
McGregor,S.E. (1976).
Insect Pollination of cultivated crop plants. (USDA Handbook No. 496) .
Washington,D.C:
USDA, Forest Service.
Chicago Style
McGregor,S.E.
Insect Pollination of cultivated crop plants. (USDA Handbook No. 496).
Washington,D.C:
USDA, Forest Service,
1976.
.
MLA Style
McGregor,S.E.
Insect Pollination of cultivated crop plants. (USDA Handbook No. 496).
Washington,D.C:
USDA, Forest Service,
1976.
.
Turabian Style
McGregor,S.E.
Insect Pollination of cultivated crop plants. (USDA Handbook No. 496).
Washington,D.C:
USDA, Forest Service,
1976.
.