Cita APA (7a ed.)

Griffiths, R., & Pearson, B. (1988). Working with drug users. Community care practice handbooks.

Cita Chicago Style (17a ed.)

Griffiths, Ronno, y Brian Pearson. "Working with Drug Users." Community Care Practice Handbooks 1988.

Cita MLA (8a ed.)

Griffiths, Ronno, y Brian Pearson. "Working with Drug Users." Community Care Practice Handbooks, 1988.