Martin, L. A., & Shaughnessy, T. W. (1967). Progress and problems of Pennsylvania libraries: A resurvey. Pennsylvania State Library.
Style de citation Chicago (17e éd.)Martin, Lowell Arthur, et Thomas W. Shaughnessy. Progress and Problems of Pennsylvania Libraries: A Resurvey. Harrisburg: Pennsylvania State Library, 1967.
Style de citation MLA (9e éd.)Martin, Lowell Arthur, et Thomas W. Shaughnessy. Progress and Problems of Pennsylvania Libraries: A Resurvey. Pennsylvania State Library, 1967.
Attention : ces citations peuvent ne pas être correctes à 100%.