APA استشهاد

Raina A.K & Agarwal S.K. (2004). The essence of tourism development/1e. Sarup.

استشهاد بنمط شيكاغو

Raina A.K و Agarwal S.K. The Essence of Tourism Development/1e. New Delhi: Sarup, 2004.

MLA استشهاد

Raina A.K و Agarwal S.K. The Essence of Tourism Development/1e. Sarup, 2004.