Andrews, G. E., Askey, R., & Roy, R. (1999). Special Functions. Cambridge University Press.
Cita Chicago (17th ed.)Andrews, George E., Richard Askey, i Ranjan Roy. Special Functions. Cambridge: Cambridge University Press, 1999.
Cita MLA (9th ed.)Andrews, George E., et al. Special Functions. Cambridge University Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.