Slater, J. (1991). Practical business math procedures (3rd ed.). Irwin.
Cita Chicago (17th ed.)Slater, Jeffrey. Practical Business Math Procedures. 3rd ed. Homewood, IL: Irwin, 1991.
Cita MLA (8th ed.)Slater, Jeffrey. Practical Business Math Procedures. 3rd ed. Irwin, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.