APA (7e ed.) Bronvermelding
Norton, P. (2003). Peter Norton's essential concepts (5th ed.). Glencoe/McGraw-Hill.
Chicago (17e ed.) Bronvermelding
Norton, Peter. Peter Norton's Essential Concepts. 5th ed. New York: Glencoe/McGraw-Hill, 2003.
MLA (9e ed.) Bronvermelding
Norton, Peter. Peter Norton's Essential Concepts. 5th ed. Glencoe/McGraw-Hill, 2003.
Let op: Deze citaties zijn niet altijd 100% accuraat.