Ackroyd S <br/><br/>
Data collection in contest. 
Ackroyd S; Huges John A 
 -  2000 
 - 155p  cm. 
<br/><br/><label>ISBN: </label>0582480159 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology
<br/><br/><label>Dewey Class. No.: </label>Yb4, M1/TD