Cita APA (7a ed.)

Pitcher, G. D., & Poland, S. (1992). Crisis intervention in the schools. Guilford.

Cita Chicago Style (17a ed.)

Pitcher, Gayle D., y Scott Poland. Crisis Intervention in the Schools. New York [u.a.]: Guilford, 1992.

Cita MLA (9a ed.)

Pitcher, Gayle D., y Scott Poland. Crisis Intervention in the Schools. Guilford, 1992.