Kumar, R. (1985). Fundamentals of Historical Geology and Stratigraphy of India (Reprint.). Wiley Eastern.
Chicago-čujuhus (17. p.)Kumar, Ravindra. Fundamentals of Historical Geology and Stratigraphy of India. Reprint. New Delhi: Wiley Eastern, 1985.
MLA-čujuhus (9. p.)Kumar, Ravindra. Fundamentals of Historical Geology and Stratigraphy of India. Reprint. Wiley Eastern, 1985.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.