APA (7e ed.) Bronvermelding

Mitchell, H. B. (2005). Roots of wisdom (4th ed.). Wadsworth Thomson Learning.

Chicago (17e ed.) Bronvermelding

Mitchell, Helen Buss. Roots of Wisdom. 4th ed. Australia: Wadsworth Thomson Learning, 2005.

MLA (9e ed.) Bronvermelding

Mitchell, Helen Buss. Roots of Wisdom. 4th ed. Wadsworth Thomson Learning, 2005.