Zweizig, D. L. (1976). With Our Eye on the User: Needed Research for Information and Referral in the Public Library.
Citazione stile Chigago Style (17a edizione)Zweizig, Douglas L. With Our Eye on the User: Needed Research for Information and Referral in the Public Library. 1976.
Citatione MLA (9a ed.)Zweizig, Douglas L. With Our Eye on the User: Needed Research for Information and Referral in the Public Library. 1976.
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