Ferguson, Frederick F. <br/><br/>
Plantas potencialmente peligrosas de Puerto Rico =  Potentially hazardous plants of Puerto Rico : guia preliminar 
por Frederick F. Ferguson y Freddy R. Medina. 
 - [Mayagüez]  [Springfield, Va.  Puerto Rico Nuclear Center  reproduced by National Technical Information Service]  1975. 
 - 51 leaves  28 cm. 
<br/><br/> "PRNC-193."  English and Spanish. 
<br/><br/>Bibliography: leaves 50-51. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Poisonous plants--Puerto Rico.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Puerto Rico