Crosby, Alfred W <br/><br/>
The Columbian exchange  :  biological and cultural consequences of 1492 

 - Westport  Greenwood Press  1973 
 - 268 p  ilus 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DESCUBRIMIENTO DE AMERICA<br/>HISTORIA AMERICANA<br/>ENFERMEDADES<br/>CULTURA<br/>BIOLOGIA
<br/><br/><label>Subjects--Geographic Terms: </label><br/>AMERICAS