Uberoi,N.K. Environmental Management (2nd.). Excel Books.
Chicago-čujuhus (17. p.)Uberoi,N.K. Environmental Management. 2nd. 2017: Excel Books.
MLA-čujuhus (9. p.)Uberoi,N.K. Environmental Management. 2nd. Excel Books.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.