Ortega y Medina, Juan A. <br/><br/>
Humboldt desde Mexico 
/ Juan A. Ortega y Medina 
 - Mexico  : U.N.A.M.  , c1960. 
 - 318 p.  ; maps. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Humboldt, Alexander von (, 1769-1859) 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Mexico---Historia---Epoca colonial
<br/><br/><label>Dewey Class. No.: </label>972.03 ORT