Nelson Associates, inc, & Public Library Association. (1969). Public library systems in the United States: A survey of multijurisdictional systems. American Library Association.
Chicago-Zitierstil (17. Ausg.)Nelson Associates, inc, und Public Library Association. Public Library Systems in the United States: A Survey of Multijurisdictional Systems. Chicago: American Library Association, 1969.
MLA-Zitierstil (9. Ausg.)Nelson Associates, inc, und Public Library Association. Public Library Systems in the United States: A Survey of Multijurisdictional Systems. American Library Association, 1969.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.