A practical English grammar programmed workbook. 

 - London :  Collier-Macmillan,  [1972] 
 - Collier Macmillan English Program .
<br/><br/> Reprint of the 1968 edition. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language -- Grammar -- Study and teaching.--English language -- Grammar -- Study and teaching.--English language -- Grammar -- Study and teaching.