APA (7th ed.) Citation

Mills, S. (1991). Out of the earth: The essential book of herbal medicine. Arkana.

Chicago Style (17th ed.) Citation

Mills, Simon. Out of the Earth: The Essential Book of Herbal Medicine. Harmondsworth, Middlesex, England: Arkana, 1991.

MLA (9th ed.) Citation

Mills, Simon. Out of the Earth: The Essential Book of Herbal Medicine. Arkana, 1991.