6 1 10 ROBBERS Additional Author TYLER Additional Author mixed material 0789001594 New York TheTherapeutic Use of Phytomedicinals 1999 A physicians' guide to herbal medicine V. Schulz Additional Author R. Hansel Additional Author V.E. Tyler Additional Author mixed material 3540626484 Berlin Spriger 1998 the Therapeutic Use of Phytomedicinals Varro E. tyler Additional Author James E. Robbers Additional Author mixed material 0789001594 New York The Haworth Herbal Press 1999 Tyler%27s_Herbs_of_Choice_the_Therapeutic_Use_of_Phytomedicinals.jpg.jpg Varro E. tyler Additional Author mixed material 1560242876 New York Pharmaceutical Products Press 1993 Varro E. tyler Additional Author Mark Blumenthal Additional Author Chance W. Riggins Additional Author Werner R. Busse Additional Author Alicia Goldberg Additional Author Joerg Gruenwald Additional Author Tara Hall Additional Author Robert S. Rister Additional Author Sigrid Klein Additional Author mixed material 096555550X Texas American Botanical Council 1998 Varro E. tyler Additional Author Lynn R. Brady Additional Author James E. Robbers Additional Author mixed material 0812110714 Philadlphia Lea febiger 1988