Smith, H. L. (1954). Adult education activities in public libraries: A report of the ALA survey of adult education activities in public libraries and State library extension agencies of the United States. American Library Association.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSmith, Helen Lyman. Adult Education Activities in Public Libraries: A Report of the ALA Survey of Adult Education Activities in Public Libraries and State Library Extension Agencies of the United States. Chicago: American Library Association, 1954.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSmith, Helen Lyman. Adult Education Activities in Public Libraries: A Report of the ALA Survey of Adult Education Activities in Public Libraries and State Library Extension Agencies of the United States. American Library Association, 1954.