Innes, A. (1977). Business mathematics by example. Macmillan.
Chicago-čujuhus (17. p.)Innes, Alexander. Business Mathematics by Example. London: Macmillan, 1977.
MLA-čujuhus (9. p.)Innes, Alexander. Business Mathematics by Example. Macmillan, 1977.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.