APA (7th ed.) Citation

Armstrong, D. (2005). Herbs that work: The scientific evidence of their healing powers. Health Harmony.

Chicago Style (17th ed.) Citation

Armstrong, David. Herbs That Work: The Scientific Evidence of Their Healing Powers. India: Health Harmony, 2005.

MLA (9th ed.) Citation

Armstrong, David. Herbs That Work: The Scientific Evidence of Their Healing Powers. Health Harmony, 2005.

Warning: These citations may not always be 100% accurate.