Aiyengar, N. K. N. (1996). An Introduction to Invertebrate Palaeontology. Vikas Publishing House.
Chicago-čujuhus (17. p.)Aiyengar, N. K. N. An Introduction to Invertebrate Palaeontology. New Delhi: Vikas Publishing House, 1996.
MLA-čujuhus (9. p.)Aiyengar, N. K. N. An Introduction to Invertebrate Palaeontology. Vikas Publishing House, 1996.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.