Hansen Horris H <br/><br/>
Sample survey method and theory 

 -  1956 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>66177 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Samples
<br/><br/><label>Dewey Class. No.: </label>B2817, J6;1