APA
National Environmental Engineering Research Institute, National Environmental Engineering Research Institute, . (2000). Annual report 1988-89. Nagpur: Neeri India.
Chicago
National Environmental Engineering Research Institute, National Environmental Engineering Research Institute, . 2000. Annual report 1988-89. Nagpur: Neeri India.
Harvard
National Environmental Engineering Research Institute, National Environmental Engineering Research Institute, . (2000). Annual report 1988-89. Nagpur: Neeri India.
MLA
National Environmental Engineering Research Institute, National Environmental Engineering Research Institute, . Annual report 1988-89. Nagpur: Neeri India. 2000.
