APA (7th ed.) Citation

Portman, M. E. (2009). Generalized anxiety disorder across the lifespan: An integrative approach. Springer. https://doi.org/10.1007/978-0-387-89243-6

Chicago Style (17th ed.) Citation

Portman, Michael E. Generalized Anxiety Disorder Across the Lifespan: An Integrative Approach. New York: Springer, 2009. https://doi.org/10.1007/978-0-387-89243-6.

MLA (9th ed.) Citation

Portman, Michael E. Generalized Anxiety Disorder Across the Lifespan: An Integrative Approach. Springer, 2009. https://doi.org/10.1007/978-0-387-89243-6.