Ryan, W. S. <br/><br/>
The increasing use of logical trees in the civil service / 
W. S. Ryan 
 - London :  Civil Service College (CSC) ,  1970 
 - 20p. :  ill. ;  24 cm.  
 - CAS Occasional paper  No. 13 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Civil service
<br/><br/><label>Gov. Doc. Class. No.: </label>GB CSD CAS OP-13