APA (7e ed.) Bronvermelding

Ricketts, C., & Ricketts, J. C. (2018). Leadership: Personal development and career success (Fourth edition.). Cengage Learning.

Chicago (17e ed.) Bronvermelding

Ricketts, Cliff, en John C. Ricketts. Leadership: Personal Development and Career Success. Fourth edition. Australia: Cengage Learning, 2018.

MLA (9e ed.) Bronvermelding

Ricketts, Cliff, en John C. Ricketts. Leadership: Personal Development and Career Success. Fourth edition. Cengage Learning, 2018.