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Fundamentals of Pharmacognosy and Phytotherapy
by
Michael Heinrich, Joanne Barnes, Simon Gibbons, Elizabeth M. Williamson
Churchill Livingstone, January 5, 2004
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Major Herbs of Ayurveda
by
Elizabeth M. Williamson
Churchill Livingstone, October 7, 2002
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Pharmacological Methods in Phytotherapy Research (Pharmacological Methods in Phytotherapy Research, V. 1)
by
Elizabeth M. Williamson, David T. Okpako, Fred J. Evans
Wiley, June 1996
Paperback
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Potter's Herbal Cyclopedia
by
Elizabeth M. Williamson
C.W. Daniel Company, Limited, December 3, 2004
Paperback
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Selection, preparation, and pharmacological evaluation of plant material
by
Elizabeth M. Williamson
J. Wiley, 1996
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Potter's herbal cyclopedia
by
Elizabeth M. Williamson
C.W. Daniel, 2003
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