Cita APA (7th ed.)
Riddle, J. (2001). Entrepreneur magazine's consulting business. Entrepreneur Press.
Cita Chicago (17th ed.)
Riddle, John. Entrepreneur Magazine's Consulting Business. Irvine, CA: Entrepreneur Press, 2001.
Cita MLA (9th ed.)
Riddle, John. Entrepreneur Magazine's Consulting Business. Entrepreneur Press, 2001.
Atenció: Aquestes cites poden no estar 100% correctes.