Cita APA (7a ed.)

Beckett, C., & Horner, N. (2016). Essential theory for social work practice (Second edition.). Sage.

Cita Chicago Style (17a ed.)

Beckett, Chris, y Nigel Horner. Essential Theory for Social Work Practice. Second edition. London: Sage, 2016.

Cita MLA (9a ed.)

Beckett, Chris, y Nigel Horner. Essential Theory for Social Work Practice. Second edition. Sage, 2016.