APA (7e ed.) Bronvermelding
Opperman, C., & Villiers, M. d. (2015). Determine the true value of learning and development. Knowres Publishing.
Chicago (17e ed.) Bronvermelding
Opperman, Catherina, en Marlene de Villiers. Determine the True Value of Learning and Development. Randburg, South Africa: Knowres Publishing, 2015.
MLA (9e ed.) Bronvermelding
Opperman, Catherina, en Marlene de Villiers. Determine the True Value of Learning and Development. Knowres Publishing, 2015.
Let op: Deze citaties zijn niet altijd 100% accuraat.