Dyfyniad APA

Pichtel, J. (2014). Waste management practices: Municipal, hazardous and industrial (2nd ed.). CRC Press.

Dyfyniad Arddull Chicago

Pichtel, John. Waste Management Practices: Municipal, Hazardous and Industrial. 2nd ed. Boca Raton: CRC Press, 2014.

Dyfyniad MLA

Pichtel, John. Waste Management Practices: Municipal, Hazardous and Industrial. 2nd ed. CRC Press, 2014.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.