Cita APA (7th ed.)

Gossez, J. P., Dozo, E. J. L., Mawhin, J., & Waelbroeck, L. (1976). Nonlinear operators and the calculus of variations. Springer-Verlag.

Cita Chicago (17th ed.)

Gossez, J. P., E. J. Lami Dozo, J. Mawhin, i L. Waelbroeck. Nonlinear Operators and the Calculus of Variations. Berlín: Springer-Verlag, 1976.

Cita MLA (9th ed.)

Gossez, J. P., et al. Nonlinear Operators and the Calculus of Variations. Springer-Verlag, 1976.