Ramshaw, Harold George. <br/><br/>
Blackboard work / 
adapted by C. White. 
 - Kuala Lumpur,  1961. 
 - 56 p. :  20 cm. 
 - Teacher's bookshelf .
 - Teacher's bookshelf .
<br/><br/><label>Dewey Class. No.: </label>371.335   / RAM 1961