Gaya APA

Hughes, R., Ginnett, R, C. (2019). LEADERSHIP; Enhancing the Lessons of Experience (9th). New York: MCGRAW-HILL.

Gaya MLA

Hughes, Richard., Ginnett, Robert, C.. "LEADERSHIP; Enhancing the Lessons of Experience". 9th New York: MCGRAW-HILL, 2019. Text.