Cita APA (7a ed.)

Germain, C. B., & Gitterman, A. (1980). The Life model of social work practice. Columbia University.

Cita Chicago Style (17a ed.)

Germain, Carel B., y Alex Gitterman. The Life Model of Social Work Practice. New York: Columbia University, 1980.

Cita MLA (9a ed.)

Germain, Carel B., y Alex Gitterman. The Life Model of Social Work Practice. Columbia University, 1980.