APA aipamena

Martin, L. A., & Shaughnessy, T. W. (1967). Progress and problems of Pennsylvania libraries: A resurvey. Pennsylvania State Library.

Chicago Style aipamena

Martin, Lowell Arthur, and Thomas W. Shaughnessy. Progress and Problems of Pennsylvania Libraries: A Resurvey. Harrisburg: Pennsylvania State Library, 1967.

MLA aipamena

Martin, Lowell Arthur, and Thomas W. Shaughnessy. Progress and Problems of Pennsylvania Libraries: A Resurvey. Pennsylvania State Library, 1967.