APA (7e ed.) Bronvermelding

LAFFER, W. B. Mathematics for General Education. Dickenson Publishing Company.

Chicago (17e ed.) Bronvermelding

LAFFER, Walter B. Mathematics for General Education. Dickenson Publishing Company.

MLA (8e ed.) Bronvermelding

LAFFER, Walter B. Mathematics for General Education. Dickenson Publishing Company.

Let op: Deze citaties zijn niet altijd 100% accuraat.