Heinrich, Michael, <br/><br/>
Fundaments of pharmacognosy and phytotherapy / 
Michael Heinrich ; Joanne Barnes ; José M. Prieto Garcia ; Simon Gibbons ; Elizabeth M. Williamson ; forewords by A. Douglas Kinghorn ; Mark Blumenthal 
 - 3rd ed. 
 - xvi, 359p. :  ill. (some col.) ;  25cm