Crawford. (2000). Evaluation of library and information services (2nd ed.). Aslib.
Chicago Style (17. basım) AtıfCrawford. Evaluation of Library and Information Services. 2nd ed. London: Aslib, 2000.
MLA (8th ed.) AtıfCrawford. Evaluation of Library and Information Services. 2nd ed. Aslib, 2000.
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