http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
by Edmund N. Gathercoal and Elmer H. Wirth.
"The authors have undertaken the preparation of a new text in pharmacognosy based on the third edition of Kraemer's Pharmacognosy" --Pref.
"A list of well-known books on pharmacognosy": pages 11-12.