Look listen and learn :  musical addition and fun with subtraction / 
Rodolfo C. Torres. 
 - [sl.] :  [sn.],   c?.  
 - 2 videodisc (VCD): sd., col.;  4 3/4 in.  
<br/><br/><label>Subjects--Topical Terms: </label>
<br/><br/><label>Dewey Class. No.: </label>DVD 372.6 T6361 c?.