Cita APA (7a ed.)

Heanue, K., & Lawton, C. (2012). Working with substance users. Open University Press.

Cita Chicago Style (17a ed.)

Heanue, Kim, y Chris Lawton. Working with Substance Users. Maidenhead [u.a.]: Open University Press, 2012.

Cita MLA (8a ed.)

Heanue, Kim, y Chris Lawton. Working with Substance Users. Open University Press, 2012.