APA Style
Zimdahl,R.L.. (1980).
Weed Crop Competition .
:
The United States by the International Plant Prote.
Chicago Style
Zimdahl,R.L..
Weed Crop Competition.
:
The United States by the International Plant Prote,
1980.
Text.
MLA Style
Zimdahl,R.L..
Weed Crop Competition.
:
The United States by the International Plant Prote,
1980.
Text.
Turabian Style
Zimdahl,R.L..
Weed Crop Competition.
:
The United States by the International Plant Prote,
1980.
Print.