MASTERS GILBERT M. (2012). INTRODUCTION TO ENVIRONMENTAL ENGINEERING AND SCIENCE (3RD ED.). PHI LEARNING PVT LTD.
Lua i Stíl Chicago (17ú heag.)MASTERS GILBERT M. INTRODUCTION TO ENVIRONMENTAL ENGINEERING AND SCIENCE. 3RD ED. NEW DWLHI: PHI LEARNING PVT LTD, 2012.
Lua MLA (9ú heag.)MASTERS GILBERT M. INTRODUCTION TO ENVIRONMENTAL ENGINEERING AND SCIENCE. 3RD ED. PHI LEARNING PVT LTD, 2012.
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