Παραπομπή APA

Kaul, S., & Arvind Kumar. (2006). Waste water engineering. APH Publishing.

Παραπομπή Chicago Style

Kaul, S.N, και Arvind Kumar. Waste Water Engineering. New Delhi: APH Publishing, 2006.

Παραπομπή MLA

Kaul, S.N, και Arvind Kumar. Waste Water Engineering. APH Publishing, 2006.