Water pollution :
Goel, P.K.
Water pollution : causes, effects and control / P.K. Goel - Revised 2nd ed. - New Delhi : New Age International (P), c2006. - xiii, 418 p. : ill. ; 24 cm.
Includes index.
8122418392
Water-supply--Management.
Water--Purification.
Sewage--Purification.
363.7394 / GOW
Water pollution : causes, effects and control / P.K. Goel - Revised 2nd ed. - New Delhi : New Age International (P), c2006. - xiii, 418 p. : ill. ; 24 cm.
Includes index.
8122418392
Water-supply--Management.
Water--Purification.
Sewage--Purification.
363.7394 / GOW