Harvard Business Review. (1991). Motivation. Harvard Business School Publishing.
Chicago (17e ed.) BronvermeldingHarvard Business Review. Motivation. Boston, Mass: Harvard Business School Publishing, 1991.
MLA (9e ed.) BronvermeldingHarvard Business Review. Motivation. Harvard Business School Publishing, 1991.
Let op: Deze citaties zijn niet altijd 100% accuraat.