RAO, C. S. (1991). ENVIROMENTAL POLLUTION CONTROL ENGG. NEW AGE (I) LTD.
Cita Chicago Style (17a ed.)RAO, C S. ENVIROMENTAL POLLUTION CONTROL ENGG. NEW DELHI: NEW AGE (I) LTD, 1991.
Cita MLA (9a ed.)RAO, C S. ENVIROMENTAL POLLUTION CONTROL ENGG. NEW AGE (I) LTD, 1991.
Precaución: Estas citas no son 100% exactas.