Παραπομπή APA

Kaul, S. (2004). Waste water treatment technologies and environment. Daya.

Παραπομπή Chicago Style

Kaul, S.N. Waste Water Treatment Technologies and Environment. Delhi: Daya, 2004.

Παραπομπή MLA

Kaul, S.N. Waste Water Treatment Technologies and Environment. Daya, 2004.