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Hoerman, H.L.; Furniss, K.A.: Turning practice into principles : a comparison of the IFLA Principles underlying Subject Heading Languages (SHLs) and the principles underlying the Library of Congress Subject Headings system (2000)
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Ferl, T.E.; Millsap, L.: Subject cataloging : a how-to-do-it workbook (1991)
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Russell, M.A.: Inconsistencies in subject headings in young adult resources (1991)
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Greenberg, A.M.: Scope notes in Library of Congress Subject Headings (1981)
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Dailey, J.E.: Subject headings (1980)
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