1. American Association of School Librarians. “Position Statement on Labeling Books with Reading Levels.” American Library Association, http://www.ala.org/aasl/advocacy/resources/statements/labeling. Accessed 18 Jul. 2011
2. American Library Association Council. “Rating Systems: An Interpretation of the Library Bill of Rights.” American Library Association, http://www.ala.org/advocacy/intfreedom/librarybill/interpretations/rating-systems. Accessed 25 Jun. 2019
3. Benke, Louise F. “It’s All Fun and Games until Someone Learns to Read, Then It’s Educational: Children’s Librarians as Literacy Educators.” 2019. U of Northern Colorado, PhD Dissertation. ProQuest Order no. 22616489.