Gaya APA
Varshney, CK.. (1983).
Water pollution and management .
:
Wiley Eastern.
Gaya Chicago
Varshney, CK..
Water pollution and management.
:
Wiley Eastern,
1983.
Text.
Gaya MLA
Varshney, CK..
Water pollution and management.
:
Wiley Eastern,
1983.
Text.
Gaya Turabian
Varshney, CK..
Water pollution and management.
:
Wiley Eastern,
1983.
Print.