The hidden harvest:  wild foods and agricultural systems: a literature review and annotated bibliography/ 
Compiled by Ian Scoones, Mary Melnyk and Jules N. Pretty 
 - London  The Sustainable Agriculture Programme  c1992 
 - 255p.:  col. ill. 
<br/><br/><label>ISBN: </label>0905347935 
<br/><br/><label>Dewey Class. No.: </label>016.641303