Numbers 1 to 50.- 

 - Nairobi   Spear Sharp Education   [20--?}. 
<br/><br/><label>ISBN: </label>( Sharp with) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Elementary Education
<br/><br/><label>Dewey Class. No.: </label>372.72 NUM