Cita APA (7a ed.)

Ding, Y. (2007). Variational methods for strongly indefinite problems. World Scientific.

Cita Chicago Style (17a ed.)

Ding, Yanheng. Variational Methods for Strongly Indefinite Problems. Singapore ; Hackensack, NJ: World Scientific, 2007.

Cita MLA (8a ed.)

Ding, Yanheng. Variational Methods for Strongly Indefinite Problems. World Scientific, 2007.