Ellis, Brian <br/><br/>
Basic concepts of measurement / 
by Brian Ellis 
 - Cambridge :  Cambridge University Press,  1968 
 - 219 p. :  ill. ;  23 cm. 
<br/><br/><label>ISBN: </label>0521048893 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physical measurements