Duff, G. F. D. (1956). Partial differential equations. University of Toronto Press.
Style de citation ChicagoDuff, G. F. D. Partial Differential Equations. Toronto: University of Toronto Press, 1956.
Style de citation MLADuff, G. F. D. Partial Differential Equations. University of Toronto Press, 1956.
Attention : ces citations peuvent ne pas être correctes à 100%.