APA
(1990). INDIAN JOURNAL OF ENVIRONMENTAL HEALTH (J). NAGPUR: NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE.
Chicago
1990. INDIAN JOURNAL OF ENVIRONMENTAL HEALTH (J). NAGPUR: NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE.
Harvard
(1990). INDIAN JOURNAL OF ENVIRONMENTAL HEALTH (J). NAGPUR: NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE.
MLA
INDIAN JOURNAL OF ENVIRONMENTAL HEALTH (J). NAGPUR: NATIONAL ENVIRONMENTAL ENGINEERING RESEARCH INSTITUTE. 1990.