Woodruff, G. Willard <br/><br/>
Working words in spelling / 
G. Willard Woodruff and George N. Moore 
 - 2d ed 
 - North Billerica, Mass. :  Curriculum Associates,  c1981 
 - 8 v. :  ill. ;  26-28 cm. +  teacher's ed. (8 v.) + spirit masters (7 v.) + teacher's resource package (7 v.) + spelling manager (8 v.) (3 computer disks each (Apple II+, IIe, IIc ; 5 1/4 in.) with teacher's guide) 
<br/><br/><label>ISBN: </label>0891871136 (A) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Orthography and spelling