Hays, Ron D. <br/><br/>
User's guide for the longitudinal scalogram analysis program / 
Ron D. Hays ; supported by the Conrad N. Hilton Foundation.. 
 - California :  Rand Corporation,  1991. 
 - vii, 24 p. ;  28 cm. 
 - A Rand note  N-3260-CHF/RC .
 - Rand note  N-3260-CHF/RC. .
<br/><br/>Bibliography: p.23-24. 
<br/><br/><label>ISBN: </label> Hadiah