Gershevsky, R. H. (1959). PNLA 1909-1959: A chronological summary of fifty eventful years. Pacific Northwest Library Association.
Style de citation Chicago (17e éd.)Gershevsky, Ruth Hale. PNLA 1909-1959: A Chronological Summary of Fifty Eventful Years. [Seattle?]: Pacific Northwest Library Association, 1959.
Style de citation MLA (8e éd.)Gershevsky, Ruth Hale. PNLA 1909-1959: A Chronological Summary of Fifty Eventful Years. Pacific Northwest Library Association, 1959.
Attention : ces citations peuvent ne pas être correctes à 100%.