Smith, K. J. Precalculus mathematics: A functional approach (3rd ed.).
Cita Chicago (17th ed.)Smith, Karl J. Precalculus Mathematics: A Functional Approach. 3rd ed.
Cita MLA (9th ed.)Smith, Karl J. Precalculus Mathematics: A Functional Approach. 3rd ed.
Atenció: Aquestes cites poden no estar 100% correctes.