Policing cannabis as a class C drug :  an arresting change? / 
Tiggey May ... [et al.]. 
 - York :  Joseph Rowntree Foundation,  2007. 
 - xii, 55 p. :  ill. ;  28 cm. 
<br/><br/> Downloaded from the Internet [January 2009], http://www.jfk.org.uk. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9781859355435 (pbk.) :  £14.95 9781859355442 (online format) 1859355439 1859355447