La enseñanza de matemática a niños con impedimentos leves / 
Joseph H. Whitaker. 
 - 1. ed. 
 - San Juan, P.R. ;  Publicaciones Puertorriqueñas  1991. 
 - 161 p.  ill.  23 cm. 
<br/><br/>Bibliography: p. [159]-161. 
<br/><br/><label>ISBN: </label>0929441222   32.85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics--Study and teaching (Elementary)<br/>Special education<br/>Mentally handicapped children--Education.
<br/><br/><label>LC Class. No.: </label>QA135.5  / .W44 1991