Pirnot, T. L. (2004). Mathematics all around (2nd ed.). Pearson/Addison Wesley.
Cita Chicago (17th ed.)Pirnot, Thomas L. Mathematics All Around. 2nd ed. Boston: Pearson/Addison Wesley, 2004.
Cita MLA (9th ed.)Pirnot, Thomas L. Mathematics All Around. 2nd ed. Pearson/Addison Wesley, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.