Coulby, D. <br/><br/>
Preventing classroom disruption:  Policy,Practice and evaluation in Urban schools/ 
David,Coulby and Tim Harper. 
 - London:  Croom Helm.  2012. 
 - 188p.  ill,:  23 cm 
<br/><br/> Includes appendix and index 
<br/><br/><label>ISBN: </label>9780415682626 
<br/><br/><label>LC Class. No.: </label>DUCE LC4803.G7C68