APA
Sapru R K,, . (1987). Environment management in India. Vol.I. New Delhi: Ashish Publishing House.
Chicago
Sapru R K,, . 1987. Environment management in India. Vol.I. New Delhi: Ashish Publishing House.
Harvard
Sapru R K,, . (1987). Environment management in India. Vol.I. New Delhi: Ashish Publishing House.
MLA
Sapru R K,, . Environment management in India. Vol.I. New Delhi: Ashish Publishing House. 1987.