APA (7th ed.) Citation

Zou, W., & Schechter, M. (2006). Critical point theory and its applications. Springer. https://doi.org/10.1007/0-387-32968-4

Chicago Style (17th ed.) Citation

Zou, Wenming, and Martin Schechter. Critical Point Theory and Its Applications. New York, NY: Springer, 2006. https://doi.org/10.1007/0-387-32968-4.

MLA (9th ed.) Citation

Zou, Wenming, and Martin Schechter. Critical Point Theory and Its Applications. Springer, 2006. https://doi.org/10.1007/0-387-32968-4.