Παραπομπή APA

Robbers, J. E., & Tyler, V. E. (2002). Tylers herbs of choice: The therapeutic use of phytomedicinals. CBS.

Παραπομπή Chicago Style

Robbers, James E., και Varro E. Tyler. Tylers Herbs of Choice: The Therapeutic Use of Phytomedicinals. New Delhi: CBS, 2002.

Παραπομπή MLA

Robbers, James E., και Varro E. Tyler. Tylers Herbs of Choice: The Therapeutic Use of Phytomedicinals. CBS, 2002.