Gellman, Estelle S. <br/><br/>
Statistics for teachers / 
Estelle S. Gellman 
 - New York :  Harper & Row,  1973 
 - vii, 239 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography: p. 233 
<br/><br/><label>ISBN: </label>0060422890 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational statistics