Παραπομπή APA

Birdie, G. (2000). Water supply and sanitary engineering (6th.rev.). Dhanpat Rai.

Παραπομπή Chicago Style

Birdie, G.S. Water Supply and Sanitary Engineering. 6th.rev. New Delhi: Dhanpat Rai, 2000.

Παραπομπή MLA

Birdie, G.S. Water Supply and Sanitary Engineering. 6th.rev. Dhanpat Rai, 2000.