Cita APA

Larsson, E. W., & Stern, T. A. (2013). Helplessness in the Helpers: Etiology and Management. Physicians Postgraduate Press, Inc.

Citación estilo Chicago

Larsson, Erik W., y Theodore A. Stern. Helplessness in the Helpers: Etiology and Management. Physicians Postgraduate Press, Inc, 2013.

Cita MLA

Larsson, Erik W., y Theodore A. Stern. Helplessness in the Helpers: Etiology and Management. Physicians Postgraduate Press, Inc, 2013.