APA Style
Helweg,Otto J. ().
Water Resources Planning and Management .
:
John Wiley & Sons.
Chicago Style
Helweg,Otto J.
Water Resources Planning and Management.
:
John Wiley & Sons,
.
Text.
MLA Style
Helweg,Otto J.
Water Resources Planning and Management.
:
John Wiley & Sons,
.
Text.
Turabian Style
Helweg,Otto J.
Water Resources Planning and Management.
:
John Wiley & Sons,
.
Print.