APA Style
Edwards, Clive A.. (1990).
Sustainable Agricultural Systems .
Iowa:
SOIL AND WATER CONSERVATION SOCIETY.
Chicago Style
Edwards, Clive A..
Sustainable Agricultural Systems.
Iowa:
SOIL AND WATER CONSERVATION SOCIETY,
1990.
.
MLA Style
Edwards, Clive A..
Sustainable Agricultural Systems.
Iowa:
SOIL AND WATER CONSERVATION SOCIETY,
1990.
.
Turabian Style
Edwards, Clive A..
Sustainable Agricultural Systems.
Iowa:
SOIL AND WATER CONSERVATION SOCIETY,
1990.
.