Kohl, Herbert R <br/><br/>
Writing, maths & games in the open classroom / 
by Herbert R. Kohl 
 - London :  Methuen,  1977. 
 - xi, 200p :  ill ;  21cm. 
<br/><br/><label>ISBN: </label>0416839304 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching<br/>Educational games<br/>English language--Study and teaching