Παραπομπή APA

Lions, J. (1971). Optimal control of systems governed by partial differential equations. Springer-Verlag.

Παραπομπή Chicago Style

Lions, J.-L. Optimal Control of Systems Governed by Partial Differential Equations. Berlin, New York: Springer-Verlag, 1971.

Παραπομπή MLA

Lions, J.-L. Optimal Control of Systems Governed by Partial Differential Equations. Springer-Verlag, 1971.