Knapp, N.F. (2003). "In Defense of Harry Potter: An Apologia"(PDF). School Libraries Worldwide. 9 (1). International Association of School Librarianship: 78–91. Archived from the original(PDF) on 9 March 2011. Retrieved 14 May 2009.
Knapp, N.F. (2003). "In Defense of Harry Potter: An Apologia"(PDF). School Libraries Worldwide. 9 (1). International Association of School Librarianship: 78–91. Archived from the original(PDF) on 9 March 2011. Retrieved 14 May 2009.