Held, R. E. (1973). The Rise of the public library in California. American Library Association.
Cita Chicago (17th ed.)Held, Ray E. The Rise of the Public Library in California. Chicago: American Library Association, 1973.
Cita MLA (9th ed.)Held, Ray E. The Rise of the Public Library in California. American Library Association, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.