Donnolo, M. (2014). The innovative sale. American Management Association.
Chicago-čujuhus (17. p.)Donnolo, Mark. The Innovative Sale. New York: American Management Association, 2014.
MLA-čujuhus (9. p.)Donnolo, Mark. The Innovative Sale. American Management Association, 2014.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.