Directory of information resource in the United States:   Federal government 
/ National Referral Centre for Science and Technology  
 - Washington:   National Referral Centre for Science and Technology,   1967 
 - vii, 411p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science 
<br/><br/><label>Subjects--Index Terms: </label>Information science  Science  
<br/><br/><label>Universal Decimal Class. No.: </label>D 002.6:35.071(73)   / K7