Humphreys W J <br/><br/>
Physics of the air 
Humphreys W J 
 - 2nd ed 
 -  1929 
<br/><br/><label>Standard No.: </label>89,114 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>GEOGRAPHY
<br/><br/><label>Dewey Class. No.: </label>U28:C, F9