Penna, C. V. (1977). National library and information services: A handbook for planners. Butterworths.
シカゴスタイル引用形Penna, C. V. National Library and Information Services: A Handbook for Planners. London: Butterworths, 1977.
MLA引用形式Penna, C. V. National Library and Information Services: A Handbook for Planners. Butterworths, 1977.
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