Zhang, T. (2008). Elderly entrepreneurship in an aging US economy: It's never too late. World Scientific Pub.
Chicago-Zitierstil (17. Ausg.)Zhang, Ting. Elderly Entrepreneurship in an Aging US Economy: It's Never Too Late. Singapore: World Scientific Pub, 2008.
MLA-Zitierstil (9. Ausg.)Zhang, Ting. Elderly Entrepreneurship in an Aging US Economy: It's Never Too Late. World Scientific Pub, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.