Beck, Hans <br/><br/>
Classification problems of the stimulant "yoco" (Paulina yoco Schultes & Killip, Sapindaceae) :  taxonomic and ethnotaxonomic identification in Ecuador, Colombia and Peru 

<br/><br/>bibliogr. p. 196 
<br/><br/><label>ISBN: </label>997899002X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ethnobotanique<br/>Herbier<br/>Boisson stimulante<br/>Systématique
<br/><br/><label>Subjects--Index Terms: </label>Equateur Colombie Pérou