Παραπομπή APA

V K Gupta. (2015). Tourism industry in India. Pratibha Prakashan.

Παραπομπή Chicago Style

V K Gupta. Tourism Industry in India. Delhi: Pratibha Prakashan, 2015.

Παραπομπή MLA

V K Gupta. Tourism Industry in India. Pratibha Prakashan, 2015.