1.
Approximation theory and methods. Cambridge: Cambridge University Press; 1981.
Approximation theory and methods. Cambridge : Cambridge University Press, 22 mai 1981. ISBN 0-521-22472-1
Powell M. J. D. (1981). Approximation theory and methods. Cambridge University Press.
Style de citation MLA (8e éd.)Powell M. J. D. Approximation Theory and Methods. Cambridge University Press, 1981.
Attention : ces citations peuvent ne pas être correctes à 100%.