Prakash, N. (1981). Differential Geometry. Tata McGraw-Hill.
Chicago-čujuhus (17. p.)Prakash, Nirmala. Differential Geometry. New Delhi: Tata McGraw-Hill, 1981.
MLA-čujuhus (9. p.)Prakash, Nirmala. Differential Geometry. Tata McGraw-Hill, 1981.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.