SWARUP R. (1992). ENVIRONMENTAL HEALTH, EDUCATION & PUBLIC UNDERSTANDING. MITTAL PUBLICATIONS.
Chicago-viite (17. p.)SWARUP R. ENVIRONMENTAL HEALTH, EDUCATION & PUBLIC UNDERSTANDING. NEW DELHI: MITTAL PUBLICATIONS, 1992.
MLA-viite (9. p.)SWARUP R. ENVIRONMENTAL HEALTH, EDUCATION & PUBLIC UNDERSTANDING. MITTAL PUBLICATIONS, 1992.
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