Asimov, Isaac,  1920-1992. <br/><br/>
La formación de América del Norte / 
Isaac Asimov 
 - Barcelona :  Alianza Editorial,  1973 
 - p. :  mapas ;  18 cm. 
 - El libro de bolsillo ;  4176 .
<br/><br/> Título original. : The shaping of North America. From earliest times to 1763. 
<br/><br/><label>ISBN: </label>8420638919 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>United States--History--Colonial period, ca. 1600-1775<br/>America--Discovery and exploration.<br/>United States--History--Colonial period, ca. 1600-1775.<br/>America--Discovery and exploration.<br/>América del Norte--Historia.
<br/><br/><label>LC Class. No.: </label>002 E 188  / A832f 1973 
<br/><br/><label>Dewey Class. No.: </label>970