Chugh, R. (1986). Black economy in india. Tata McGraw Hill Publ.
Chicago-čujuhus (17. p.)Chugh, R. Black Economy in India. New Delhi: Tata McGraw Hill Publ, 1986.
MLA-čujuhus (9. p.)Chugh, R. Black Economy in India. Tata McGraw Hill Publ, 1986.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.