एपीए उद्धरण

Lester, J. N. (1987). Heavy Metals in Waste Water and Sludge Treatment Process. CRC.

शिकागो स्टाइल उद्धरण

Lester, John. N. Heavy Metals in Waste Water and Sludge Treatment Process. Florida: CRC, 1987.

एमएलए उद्धरण

Lester, John. N. Heavy Metals in Waste Water and Sludge Treatment Process. CRC, 1987.