Ferron, O. M. <br/><br/>
Educational statistics for teachers. 

 - 3rd ed. 
 - [Lusaka] :  University of Zambia, Dept. of Education,  1977. 
<br/><br/> Cover shows 2nd edition. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational statistics.<br/>Educational statistics for teachers.