English Alfa / 
Editor general Kenton Suherland ; revisor Elizabeth Bellavance; ilustraciones Bill Ogden ; Anco. 
 - Boston  Bogotá :  Houghton Mifflin Company,  Voluntad,  1983. 
 - 6 volúmenes :  ilustraciones color ;  22 cm. 
<br/><br/> includes key sentences, english sounds, english words index and grammar index 
<br/><br/><label>ISBN: </label>0395285429 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INGLES--ENSEÑANZA