Alphabetical by author, books with a # symbol, denotes the link is to a digitised online version
Brice-Ytsma, H., and Watkins, F., 2014 Herbal exchanges: In celebration of the National Institute of Medical Herbalists 1864-2014. London: Strathmore Publishing.
Erichson-Brown, C., 1979. Medicinal and other uses of North American Plants. New York: Dover Publications.
O’Sullivan, C., (Ed.). 2005. Reshaping Herbal Medicine Knowledge, Education and Professional Culture. Philadelphia: Elsevier.