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Dailey, J.E.: Subject headings (1980)
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Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994)
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Russell, M.A.: Inconsistencies in subject headings in young adult resources (1991)
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Dykstra, M.: ¬The lion that squeaked (1978)
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Crawford, L.: People, places & things introduced (2001)
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