Gaya APA
GEORGE, T. (1991).
ADVANCE IN WATER TREATMENT AND ENVIRONMENTAL MANAGEMENT .
USA:
ELSEVIERAPLIED SCIENCE PUBLIHERS LTD.
Gaya MLA
GEORGE, THOMAS.
"ADVANCE IN WATER TREATMENT AND ENVIRONMENTAL MANAGEMENT".
USA:
ELSEVIERAPLIED SCIENCE PUBLIHERS LTD,
1991.
Text.