Cita APA (7a ed.)

Petrushev, P. P., & Popov, V. A. (1987). Rational approximation of real functions. Cambridge University Press.

Cita Chicago Style (17a ed.)

Petrushev, P. P., y Vasil A. Popov. Rational Approximation of Real Functions. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1987.

Cita MLA (8a ed.)

Petrushev, P. P., y Vasil A. Popov. Rational Approximation of Real Functions. Cambridge University Press, 1987.