Gupta, G. (1988). Managerial economics. Tata Mc Graw Hill.
Chicago-čujuhus (17. p.)Gupta, G. Managerial Economics. New Delhi: Tata Mc Graw Hill, 1988.
MLA-čujuhus (9. p.)Gupta, G. Managerial Economics. Tata Mc Graw Hill, 1988.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.