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Norman, O.G.: ¬The reference interview : an annotated bibliography (1979) 0.14

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Norman, O.G.: Marketing reference services (1995) 0.09

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Norman, O.G.: Marketing libraries and information services. : an annotated guide to recent trends and development (1989) 0.07

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Norman, O.G.: ¬The impact of electronic information sources on collection development : a survey of current practice (1997) 0.07

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