(1926). Library Extension: A Study of Public Library Conditions and Needs : By the Committee on Library Extension of the American Library Association. American Library Association.
Chicago-referens (17:e uppl.)Library Extension: A Study of Public Library Conditions and Needs : By the Committee on Library Extension of the American Library Association. Chicago: American Library Association, 1926.
MLA-referens (8:e uppl.)Library Extension: A Study of Public Library Conditions and Needs : By the Committee on Library Extension of the American Library Association. American Library Association, 1926.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.