Παραπομπή σε μορφή APA (7η εκδ.)

Ruffier, P. (1992). Toxic Substances in municipal waste water: A guidance manual for negotiating permits. Lewis Publishers.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Ruffier, Peter. Toxic Substances in Municipal Waste Water: A Guidance Manual for Negotiating Permits. Boca Raton: Lewis Publishers, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

Ruffier, Peter. Toxic Substances in Municipal Waste Water: A Guidance Manual for Negotiating Permits. Lewis Publishers, 1992.