Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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