APA (7th ed.) Citation

Harikumar, P. &. D. (2017). Blackwater tourism. Serials Publication.

Chicago Style (17th ed.) Citation

Harikumar, P.N. & D.Susha. Blackwater Tourism. New Delhi: Serials Publication, 2017.

MLA (9th ed.) Citation

Harikumar, P.N. & D.Susha. Blackwater Tourism. Serials Publication, 2017.