Bhatt. N.D. (1985). Elementry Engineering Drawing. Chartotar.
Chicago-čujuhus (17. p.)Bhatt. N.D. Elementry Engineering Drawing. Anand: Chartotar, 1985.
MLA-čujuhus (9. p.)Bhatt. N.D. Elementry Engineering Drawing. Chartotar, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.