RAO, C. S. (1991). ENVIROMENTAL POLLUTION CONTROL ENGG. NEW AGE (I) LTD.
Chicago-čujuhus (17. p.)RAO, C S. ENVIROMENTAL POLLUTION CONTROL ENGG. NEW DELHI: NEW AGE (I) LTD, 1991.
MLA-čujuhus (9. p.)RAO, C S. ENVIROMENTAL POLLUTION CONTROL ENGG. NEW AGE (I) LTD, 1991.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.