Cita APA (7a ed.)

Smith, M., & Boon, H. S. (1999). Counseling cancer patients about herbal medicine. [s.n.].

Cita Chicago Style (17a ed.)

Smith, Michael, y Heather S. Boon. Counseling Cancer Patients About Herbal Medicine. [S.l.]: [s.n.], 1999.

Cita MLA (9a ed.)

Smith, Michael, y Heather S. Boon. Counseling Cancer Patients About Herbal Medicine. [s.n.], 1999.