Cita APA (7a ed.)

Abramson, L. Y., & Seligman, M. E. P. (1978). Learned helplessness in humans: Critique and reformulation. [s.n.].

Cita Chicago Style (17a ed.)

Abramson, Lyn Y., y Martin E. P. Seligman. Learned Helplessness in Humans: Critique and Reformulation. [S.l.]: [s.n.], 1978.

Cita MLA (9a ed.)

Abramson, Lyn Y., y Martin E. P. Seligman. Learned Helplessness in Humans: Critique and Reformulation. [s.n.], 1978.