APA استشهاد

Bhatt Harish. (2006). Sustainable Tourism/1e. Crescent.

استشهاد بنمط شيكاغو

Bhatt Harish. Sustainable Tourism/1e. New Delhi: Crescent, 2006.

MLA استشهاد

Bhatt Harish. Sustainable Tourism/1e. Crescent, 2006.