Grubb, W. Norton. <br/><br/>
The roles of evaluation for vocational education and training :  plain talk on the field of dreams / 
W. Norton Grubb, Paul Ryan. 
 - London :  Sterling, VA :  Kogan Page ;  Distributed in the US by Stylus Pub. Inc.,  1999. 
 - xi, 195 p. ;  25 cm.