Verstraeten , A. <br/><br/>
Teacher's manual including key to workbooks to accompany science in everyday life series 
A. Verstraeten and N.A. Watts 
 - Bombay  Orient Longman  1963 
 - 256p.;  25cm. 
<br/><br/><label>Dewey Class. No.: </label>507  / VER