Rapp, M. L. <br/><br/>
Idiographic analysis of achievement measures / 
M. L. Rapp, A. A. Haggart 
 - California :  Rand Corporation,  1972 
 - 10 pages :  illustrations ;  28 cm. 
 - The Rand paper series ;  p. 4880 .
 - Rand paper series ;  p. 4880 .