APA Style
Troeh, Frederick r. (2011).
Soil and Water Conservation For Productivity and Environmental Protection .
:
.
Chicago Style
Troeh, Frederick r.
Soil and Water Conservation For Productivity and Environmental Protection.
:
,
2011.
.
MLA Style
Troeh, Frederick r.
Soil and Water Conservation For Productivity and Environmental Protection.
:
,
2011.
.
Turabian Style
Troeh, Frederick r.
Soil and Water Conservation For Productivity and Environmental Protection.
:
,
2011.
.