Cita APA (7a ed.)

Germain, C. B. (1979). Social work practice: People and environments; an ecological perspective. Columbia Univ. Pr.

Cita Chicago Style (17a ed.)

Germain, Carel B. Social Work Practice: People and Environments; an Ecological Perspective. New York: Columbia Univ. Pr, 1979.

Cita MLA (9a ed.)

Germain, Carel B. Social Work Practice: People and Environments; an Ecological Perspective. Columbia Univ. Pr, 1979.