Glenview, I. D., & Halberg, C. J. A. Elementary functions and analysis.
Cita Chicago (17th ed.)Glenview, Ill. Devlin, i Charles J. A. Halberg. Elementary Functions and Analysis.
Cita MLA (9th ed.)Glenview, Ill. Devlin, i Charles J. A. Halberg. Elementary Functions and Analysis.
Atenció: Aquestes cites poden no estar 100% correctes.