Cita APA (7a ed.)

Middleman, R. R., & Wood, G. G. (1990). Skills for direct practice in social work. Columbia University Press.

Cita Chicago Style (17a ed.)

Middleman, Ruth R., y Gale Goldberg Wood. Skills for Direct Practice in Social Work. New York: Columbia University Press, 1990.

Cita MLA (9a ed.)

Middleman, Ruth R., y Gale Goldberg Wood. Skills for Direct Practice in Social Work. Columbia University Press, 1990.