Hart, W. L. R. (1953). College algebra (4th ed.). National Bookstore.
Chicagoスタイル(17版)引用形式Hart, William Le Roy. College Algebra. 4th ed. Manila: National Bookstore, 1953.
MLA(9版)引用形式Hart, William Le Roy. College Algebra. 4th ed. National Bookstore, 1953.
警告: この引用は必ずしも正確ではありません.