APA
Akhtar R. (., . (1991). Environment and health. New Delhi: Ashish Publishing House.
Chicago
Akhtar Rais (ed), . 1991. Environment and health. New Delhi: Ashish Publishing House.
Harvard
Akhtar R. (., . (1991). Environment and health. New Delhi: Ashish Publishing House.
MLA
Akhtar Rais (ed), . Environment and health. New Delhi: Ashish Publishing House. 1991.