Recco, W. (2002). 501 algebra questions. Learning Express.
Chicagoスタイル(17版)引用形式Recco, William. 501 Algebra Questions. New York: Learning Express, 2002.
MLA(9版)引用形式Recco, William. 501 Algebra Questions. Learning Express, 2002.
警告: この引用は必ずしも正確ではありません.