Galligan, D. J. <br/><br/>
Discretionary powers :   a legal study of official discretion / 

 - Oxford,  Claredon Press,  1990. 
 - 401 p. : 
<br/><br/><label>ISBN: </label>9780198256526 
<br/><br/><label>Dewey Class. No.: </label>342.066  / GAL.D