Lata Seth. Know about science-9 environment. Dreamland.
Chicago-čujuhus (17. p.)Lata Seth. Know About Science-9 Environment. New Delhi: Dreamland.
MLA-čujuhus (9. p.)Lata Seth. Know About Science-9 Environment. Dreamland.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.