Sample studies /  
by The Geographical Association. 
 - Sheffield :    Geographical Association ,    1962. 
 - 64 p. :    ill. ;    24 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Sampling.
<br/><br/><label>Dewey Class. No.: </label>001.4222 SAM