APA
Palange R. C. &. Z. A., . (1987). Water pollution control. Washington: The world bank.
Chicago
Palange Ralph C & Zavala Alfonso, . 1987. Water pollution control. Washington: The world bank.
Harvard
Palange R. C. &. Z. A., . (1987). Water pollution control. Washington: The world bank.
MLA
Palange Ralph C & Zavala Alfonso, . Water pollution control. Washington: The world bank. 1987.