Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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