APA Style
Trip, Robert. (1991).
Planned Change in Farming Systems : Progress in on-Farm Research .
:
John Wiley & Sons.
Chicago Style
Trip, Robert.
Planned Change in Farming Systems : Progress in on-Farm Research.
:
John Wiley & Sons,
1991.
Text.
MLA Style
Trip, Robert.
Planned Change in Farming Systems : Progress in on-Farm Research.
:
John Wiley & Sons,
1991.
Text.
Turabian Style
Trip, Robert.
Planned Change in Farming Systems : Progress in on-Farm Research.
:
John Wiley & Sons,
1991.
Print.