Gellerman, S. W. (1992). Motivation in the real world: The fine art of getting extra effort from everyone-including yourself. New York: Plume.
Чикагска система за цитиранеGellerman, Saul W. Motivation in the Real World: The Fine Art of Getting Extra Effort From Everyone-including Yourself. New York: Plume, 1992.
MLA формат за цитиранеGellerman, Saul W. Motivation in the Real World: The Fine Art of Getting Extra Effort From Everyone-including Yourself. New York: Plume, 1992.
Внимание: Тези цитати може да не са 100% точни.