Cita APA (7a ed.)

Costa, D. G. a. (2007). An Invitation to Variational Methods in Differential Equations (1st ed. 2007.). Birkhäuser Boston.

Cita Chicago Style (17a ed.)

Costa, David G. author. An Invitation to Variational Methods in Differential Equations. 1st ed. 2007. Boston, MA: Birkhäuser Boston, 2007.

Cita MLA (9a ed.)

Costa, David G. author. An Invitation to Variational Methods in Differential Equations. 1st ed. 2007. Birkhäuser Boston, 2007.