APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.