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  1. Norman, O.G.: ¬The reference interview : an annotated bibliography (1979) 10.09
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    Author
    Norman, O.G.
  2. Norman, O.G.: Marketing libraries and information services. : an annotated guide to recent trends and development (1989) 10.09
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    Author
    Norman, O.G.
  3. Norman, O.G.: Marketing reference services (1995) 10.09
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    Author
    Norman, O.G.
  4. Norman, O.G.: ¬The impact of electronic information sources on collection development : a survey of current practice (1997) 10.09
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    Norman, O.G.