SWARUP R. (1992). CONTROL & SENSING OF ENVIRONMENTAL QUALITY. MITTAL PUBLICATIONS.
Chicago-čujuhus (17. p.)SWARUP R. CONTROL & SENSING OF ENVIRONMENTAL QUALITY. NEW DELHI: MITTAL PUBLICATIONS, 1992.
MLA-čujuhus (9. p.)SWARUP R. CONTROL & SENSING OF ENVIRONMENTAL QUALITY. MITTAL PUBLICATIONS, 1992.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.