Ayres, F. J. (1972). Calculus (2nd.). McGraw Hill.
Cita Chicago (17th ed.)Ayres, Frank Jr. Calculus. 2nd. New York: McGraw Hill, 1972.
Cita MLA (9th ed.)Ayres, Frank Jr. Calculus. 2nd. McGraw Hill, 1972.
Atenció: Aquestes cites poden no estar 100% correctes.