viaf :
https://viaf.org/viaf/38430518
Day, Christopher
(1947 – n. c.)
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Threshold Picture Guide n° 44 — Homeopathy by Christopher Day; illustrations by Carole Vincer.
Addington, Kenilworth Press, 2000.
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British Association of Holistic Nutrition and Medicine. A guide to plants poisonous to horses — Keith Allison ; veterinary adviser, Christopher Day.
Londres, J. A. Allen, 1997.