Robbers, J. E., & Tyler, V. E. (2002). Tylers herbs of choice: The therapeutic use of phytomedicinals. CBS.
Chicago Style aipamenaRobbers, James E., and Varro E. Tyler. Tylers Herbs of Choice: The Therapeutic Use of Phytomedicinals. New Delhi: CBS, 2002.
MLA aipamenaRobbers, James E., and Varro E. Tyler. Tylers Herbs of Choice: The Therapeutic Use of Phytomedicinals. CBS, 2002.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.