Cita APA (7th ed.)
American Association of School Librarians & ebrary, Inc. (2009). Standards for the 21st-century learner in action. American Association of School Librarians.
Cita Chicago (17th ed.)
American Association of School Librarians i Inc ebrary. Standards for the 21st-century Learner in Action. Chicago, Ill.: American Association of School Librarians, 2009.
Cita MLA (9th ed.)
American Association of School Librarians i Inc ebrary. Standards for the 21st-century Learner in Action. American Association of School Librarians, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.