Ulbricht, Catherine E. Natural Standard: Herb & Supplement Guide: An Evidence-Based Reference Catherine E. Ulbricht - U. S. A. Mosby Elsevier 2010 - xxi, 871 pages ; ill. ; 28 cm. Includes Index. ISBN: 978-0-323-07295-3 Dewey Class. No.: R/615.321/N19/2010