American Library Association. Office for Intellectual Freedom, Magi, T. J., & Garnar, M. (2015). A history of ALA policy on intellectual freedom: A supplement to The intellectual freedom manual, ninth edition. ALA Editions, an imprint of the American Library Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)American Library Association. Office for Intellectual Freedom, Trina J. Magi, και Martin Garnar. A History of ALA Policy on Intellectual Freedom: A Supplement to The Intellectual Freedom Manual, Ninth Edition. Chicago: ALA Editions, an imprint of the American Library Association, 2015.
Παραπομπή σε μορφή MLA (9th εκδ.)American Library Association. Office for Intellectual Freedom, et al. A History of ALA Policy on Intellectual Freedom: A Supplement to The Intellectual Freedom Manual, Ninth Edition. ALA Editions, an imprint of the American Library Association, 2015.