Παραπομπή APA

Deepak, K. (2018). Environment security and tourism development. Ishika.

Παραπομπή Chicago Style

Deepak, Kaushik. Environment Security and Tourism Development. ND: Ishika, 2018.

Παραπομπή MLA

Deepak, Kaushik. Environment Security and Tourism Development. Ishika, 2018.