Cita APA (7a ed.)

Harper, W. M., & Stafford, L. W. T.. (1981). Basic mathematics. MacDonald and Evans.

Cita Chicago Style (17a ed.)

Harper, William Massie, y L. W. T. Stafford. Basic Mathematics. Estovert: MacDonald and Evans, 1981.

Cita MLA (9a ed.)

Harper, William Massie, y L. W. T. Stafford. Basic Mathematics. MacDonald and Evans, 1981.