Cousins, S. (1999). Virtual OPACs versus Union Database: Two Models of Union Catalogue Provision.
Chicago Style (17th ed.) CitationCousins, Shirley. Virtual OPACs Versus Union Database: Two Models of Union Catalogue Provision. 1999.
MLA (9th ed.) CitationCousins, Shirley. Virtual OPACs Versus Union Database: Two Models of Union Catalogue Provision. 1999.
Warning: These citations may not always be 100% accurate.