Professional. Water (Prevention & Control of Pollution) Act, 1974. Professional Book Publishers.
Chicago-čujuhus (17. p.)Professional. Water (Prevention & Control of Pollution) Act, 1974. Professional Book Publishers.
MLA-čujuhus (9. p.)Professional. Water (Prevention & Control of Pollution) Act, 1974. Professional Book Publishers.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.