Modak, P. (1995). Waste minimization. centre for environment Edu.
Chicago-čujuhus (17. p.)Modak, Prasad. Waste Minimization. Ahmedabad: centre for environment Edu, 1995.
MLA-čujuhus (9. p.)Modak, Prasad. Waste Minimization. centre for environment Edu, 1995.
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