Davis, L. H., & Maddox, T. K. (1969). Elementary functions. Prentice-Hall.
Cita Chicago (17th ed.)Davis, Lawrence H., i Thomas K. Maddox. Elementary Functions. Englewood Cliffs, New Jersey: Prentice-Hall, 1969.
Cita MLA (9th ed.)Davis, Lawrence H., i Thomas K. Maddox. Elementary Functions. Prentice-Hall, 1969.
Atenció: Aquestes cites poden no estar 100% correctes.