Gaya APA

Hartley, R, , , F. (1987). Bullseyes and blunders : stories of business success & failure . New York: John Wiley & Sons, Inc.,.

Gaya MLA

Hartley, Robert, , , F. "Bullseyes and blunders : stories of business success & failure". New York: John Wiley & Sons, Inc.,, 1987. Text.