Roy, C. H. (1988). The Operation And Maintenance Of Surface Finishing Wastewater Treatment Systems Clarence H. Roy. AESF.
Chicago-viite (17. p.)Roy, Clarence H. The Operation And Maintenance Of Surface Finishing Wastewater Treatment Systems Clarence H. Roy. AESF, 1988.
MLA-viite (8. p.)Roy, Clarence H. The Operation And Maintenance Of Surface Finishing Wastewater Treatment Systems Clarence H. Roy. AESF, 1988.
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