Clarke, R.V.G. <br/><br/>
Controlled trial in institutional research : paradigm or pitfall for penal evaluators? 
by R.V.G.Clarke And D.B. Cornish 
 - London  Her Majesty's Stationery Office  1972 
 - 32p. 
<br/><br/><label>ISBN: </label>11 340115 9 
<br/><br/><label>Dewey Class. No.: </label>Q93x42 Un3c