Pidgeon, Douglas A. <br/><br/>
An introduction to educational measurement / 
by Douglas Pidgeon and Alfred Yates. 
 - London :  Routledge & K. Paul,  1969. 
 - viii, 117 p. :  ill. ;  20 cm. 
<br/><br/>Bibliography : p. 115-117. 
<br/><br/><label>ISBN: </label>710062478a 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational tests and measurements.