Singh, P. (1985). Enivronmental pollution and management. Chugh.
Chicago-čujuhus (17. p.)Singh, Pramod. Enivronmental Pollution and Management. Allahabad: Chugh, 1985.
MLA-čujuhus (9. p.)Singh, Pramod. Enivronmental Pollution and Management. Chugh, 1985.
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