Mason,  Robert Deward. <br/><br/>
Programmed learning aid for business and economic statistics / 
by Robert Deward Mason.Coordinating editor, Roger H. Hermanson. 
 - Homewood, Ill. :  Learning Systems Co.,  c1978. 
 - xi, 166 p. :  ill.  28 cm. 
 - Irwin programmed learning aid series; Irwin plaid series .
 - Irwin programmed learning aid series; Irwin plaid series .
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0256001197 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics--Programmed instruction.
<br/><br/><label>Dewey Class. No.: </label>519.077  / MAP 1978