Copper data center thesaurus 
/ Copper Development Association Inc. 
 - 5th ed. 
 - New York:   Copper Development Association Inc.,   1971 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science
<br/><br/><label>Subjects--Index Terms: </label>Thesaurus 
<br/><br/><label>Universal Decimal Class. No.: </label>D 025.43:669.3  / L1