Ball, V. (1881). A manual of the geology of India. Trubner.
Chicago-čujuhus (17. p.)Ball, V. A Manual of the Geology of India. London: Trubner, 1881.
MLA-čujuhus (9. p.)Ball, V. A Manual of the Geology of India. Trubner, 1881.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.