Beals, Ralph E. <br/><br/>
Statistics for economists :  an introduction / 
Ralph E. Beals. 
 - Chicago :  Rand McNally,  1972. 
 - xi, 420 p. :  ill. 
 - Rand McNally economic series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics.<br/>Regression analysis.