APA aipamena

MARCUS, D. A., & COPE, D. K. (2009). Chronic Pain. Clinical Publishing.

Chicago Style aipamena

MARCUS, Dawn A., and Doris K. COPE. Chronic Pain. Clinical Publishing, 2009.

MLA aipamena

MARCUS, Dawn A., and Doris K. COPE. Chronic Pain. Clinical Publishing, 2009.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.