Ingenkamp, Karlheinz (ed) <br/><br/>
Developments in educational testing  Volume 1 the proceedings of an international conference held under the aegis of the padagogisches zentrum, berlin 

 - University of london press ltd, London  1969 
 - 446p 
<br/><br/><label>ISBN: </label>340 09464 8 
<br/><br/><label>Dewey Class. No.: </label>371.26 Ing