Gaya APA
Water Quality and Treatment : A Handbook of Community. (1990).
America:
McGraw-Hill.
Gaya Chicago
Water Quality and Treatment : A Handbook of Community.
.
America:
McGraw-Hill,
1990.
Text.
Gaya MLA
Water Quality and Treatment : A Handbook of Community.
.
America:
McGraw-Hill,
1990.
Text.
Gaya Turabian
Water Quality and Treatment : A Handbook of Community.
America:
McGraw-Hill,
1990.
Print.