Hildebrand, F. B. (1965). Methods of applied mathematics (2d ed.). Prentice-Hall.
Cita Chicago (17th ed.)Hildebrand, Francis Begnaud. Methods of Applied Mathematics. 2d ed. Englewood Cliffs, N. J.: Prentice-Hall, 1965.
Cita MLA (9th ed.)Hildebrand, Francis Begnaud. Methods of Applied Mathematics. 2d ed. Prentice-Hall, 1965.
Atenció: Aquestes cites poden no estar 100% correctes.