Cita APA (7a ed.)

Leonard, B. E., & Song, C. (1996). Stress and the immune system in the etiology of anxiety and depression. [s.n.].

Cita Chicago Style (17a ed.)

Leonard, Brian E., y Cai Song. Stress and the Immune System in the Etiology of Anxiety and Depression. [S.l.]: [s.n.], 1996.

Cita MLA (9a ed.)

Leonard, Brian E., y Cai Song. Stress and the Immune System in the Etiology of Anxiety and Depression. [s.n.], 1996.