Foster, T. R. V. (1992). 101 ways to get more business. USB publishers Distr. Ltd..
Cita Chicago (17th ed.)Foster, Timothy R. V. 101 Ways to Get More Business. New Delhi: USB publishers Distr. Ltd., 1992.
Cita MLA (8th ed.)Foster, Timothy R. V. 101 Ways to Get More Business. USB publishers Distr. Ltd., 1992.
Atenció: Aquestes cites poden no estar 100% correctes.