Robert, H. D. M. (2010). Entrepreneurship (2nd ed.). SAGE.
Chicago-čujuhus (17. p.)Robert, Hisrich D; Michael. Entrepreneurship. 2nd ed. New Delhi: SAGE, 2010.
MLA-čujuhus (9. p.)Robert, Hisrich D; Michael. Entrepreneurship. 2nd ed. SAGE, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.