American Association of School Librarians & ebrary, Inc. (2009). Standards for the 21st-century learner in action. American Association of School Librarians.
Chicagoスタイル(17版)引用形式American Association of School Librarians , Inc ebrary. Standards for the 21st-century Learner in Action. Chicago, Ill.: American Association of School Librarians, 2009.
MLA(9版)引用形式American Association of School Librarians , Inc ebrary. Standards for the 21st-century Learner in Action. American Association of School Librarians, 2009.
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