Lines, Clifford John <br/><br/>
People at work / 
C. J. Lines, L. H. Bolwell. 
 - London:   Ginn,   1971.  
 - 32 p. :  ill. ;  24 cm. 
 -  5 .
<br/><br/><label>ISBN: </label>0602203406 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classroom environment
<br/><br/><label>Dewey Class. No.: </label>372.357