Prance, Ghillean T., 1937-, ed. <br/><br/>
Extinction is forever : threatened and endangered species of plants in the Americas and their significance in ecosystems today and in the future : proceedings of a symposium held at the New York Botanical Garden, May 11-13, 1976, in commemoration of the Bicentennial of the United States of America  

 - Bronx (N.Y.)  New York Botanical Garden  c1977 
 - vi, 437 p.    il., mapas, diagrs. ; 28 cm. 
<br/><br/> Donación: Dr. Ángel L. Cabrera  Incluye bibliografía y 4 péndices: p. 389-437 
<br/><br/><label>ISBN: </label>0893271969 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CONSERVACION DE LA NATURALEZA<br/>FITOGEOGRAFIA<br/>AMERICA<br/>CONGRESOS<br/>ESPECIES EN PELIGRO DE EXTINCION