Παραπομπή σε μορφή APA (7η εκδ.)

El-Halwagi, M. M. (1997). Pollution prevention through process integration: Systematic design tools. Academic Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

El-Halwagi, Mahmound M. Pollution Prevention Through Process Integration: Systematic Design Tools. San Diego: Academic Press, 1997.

Παραπομπή σε μορφή MLA (8th εκδ.)

El-Halwagi, Mahmound M. Pollution Prevention Through Process Integration: Systematic Design Tools. Academic Press, 1997.