Sumner,W.L. <br/><br/>
Statistics in school 

 - Oxford :  Basil blackwell,  1958 
 - 347p.;  22cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>371.26  / SUM