(2008). Number properties: Math strategy guide (3rd ed.). MG Prep Inc..
Chicago (17e ed.) BronvermeldingNumber Properties: Math Strategy Guide. 3rd ed. New York, N.Y.: MG Prep Inc., 2008.
MLA (8e ed.) BronvermeldingNumber Properties: Math Strategy Guide. 3rd ed. MG Prep Inc., 2008.
Let op: Deze citaties zijn niet altijd 100% accuraat.