Παραπομπή APA

Chawla Ramesh. (2006). Ecology and Tourism development/1e. Sumit.

Παραπομπή Chicago Style

Chawla Ramesh. Ecology and Tourism Development/1e. Delhi: Sumit, 2006.

Παραπομπή MLA

Chawla Ramesh. Ecology and Tourism Development/1e. Sumit, 2006.