Cita APA (7th ed.)
Zhang, T. (2008). Elderly entrepreneurship in an aging US economy: It's never too late. World Scientific Pub..
Cita Chicago (17th ed.)
Zhang, Ting. Elderly Entrepreneurship in an Aging US Economy: It's Never Too Late. Singapore ; Hackensack, NJ: World Scientific Pub., 2008.
Cita MLA (9th ed.)
Zhang, Ting. Elderly Entrepreneurship in an Aging US Economy: It's Never Too Late. World Scientific Pub., 2008.
Atenció: Aquestes cites poden no estar 100% correctes.