MALHOTRA, R. &. D. (2016). WONDER WORLD ENVIRONMENTAL STUDIES - BOOK 4. ENCYCLOPEDIA BRITANNICA.
Chicago-čujuhus (17. p.)MALHOTRA, RENU & DUDEJA. WONDER WORLD ENVIRONMENTAL STUDIES - BOOK 4. NEW DELHI: ENCYCLOPEDIA BRITANNICA, 2016.
MLA-čujuhus (9. p.)MALHOTRA, RENU & DUDEJA. WONDER WORLD ENVIRONMENTAL STUDIES - BOOK 4. ENCYCLOPEDIA BRITANNICA, 2016.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.