Washington information directory  : 1990-1991 

. - Washington  : Congressional quarterly, 1990
. - XVII-1086 p.  ; 24 cm. 
 - Congressional quarterly  0887-8064 .
<br/><br/>Index 
<br/><br/><label>ISBN: </label>0871875438 
<br/><br/><label>Universal Decimal Class. No.: </label>328.002.