Hart , J. F. (1968). Computer approximations. John Wiley.
Cita Chicago (17th ed.)Hart , John F. Computer Approximations. New York: John Wiley, 1968.
Cita MLA (9th ed.)Hart , John F. Computer Approximations. John Wiley, 1968.
Atenció: Aquestes cites poden no estar 100% correctes.