APA استشهاد

Gossez, J. P. (1976). Nonlinear Operators and the calculations of variations. Springer-Verlag.

استشهاد بنمط شيكاغو

Gossez, J P. Nonlinear Operators and the Calculations of Variations. Berlin: Springer-Verlag, 1976.

MLA استشهاد

Gossez, J P. Nonlinear Operators and the Calculations of Variations. Springer-Verlag, 1976.