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Goldhor, H.: ¬The effect of prime display location on public library circulation of selected adult titles (1972)
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Hyman, R.J.: Access to library collections : summary of a documentary and opinion survey on the direct shelf approach and browsing (1971)
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Cramer, C.H.: Open shelves and open minds : a history of the Cleveland Public Library (1972)
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Hyman, R.J.: Access to library collections : an inquiry into the validity of the direct shelf approach, with special reference to browsing (1972)
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