APA (7th ed.) Citation

Nelson Associates, inc, & Public Library Association. (1969). Public library systems in the United States: A survey of multijurisdictional systems. American Library Association.

Chicago Style (17th ed.) Citation

Nelson Associates, inc, and Public Library Association. Public Library Systems in the United States: A Survey of Multijurisdictional Systems. Chicago: American Library Association, 1969.

MLA (9th ed.) Citation

Nelson Associates, inc, and Public Library Association. Public Library Systems in the United States: A Survey of Multijurisdictional Systems. American Library Association, 1969.