Παραπομπή APA

Bhatt, S. (2004). Environmental protection and sustainable development. A. P. H. Publishing.

Παραπομπή Chicago Style

Bhatt, S. Environmental Protection and Sustainable Development. New Delhi: A. P. H. Publishing, 2004.

Παραπομπή MLA

Bhatt, S. Environmental Protection and Sustainable Development. A. P. H. Publishing, 2004.