APA (7e ed.) Bronvermelding

Recco, W. (2002). 501 algebra questions. Learning Express.

Chicago (17e ed.) Bronvermelding

Recco, William. 501 Algebra Questions. New York: Learning Express, 2002.

MLA (9e ed.) Bronvermelding

Recco, William. 501 Algebra Questions. Learning Express, 2002.