APA Style
Troeh, Frederick R. (1980).
Soil and water conservation for productivity and environmental protection .
:
.
Chicago Style
Troeh, Frederick R.
Soil and water conservation for productivity and environmental protection.
:
,
1980.
Text.
MLA Style
Troeh, Frederick R.
Soil and water conservation for productivity and environmental protection.
:
,
1980.
Text.
Turabian Style
Troeh, Frederick R.
Soil and water conservation for productivity and environmental protection.
:
,
1980.
Print.