Wood, J. (1964). United States government publications: A partial list of non-GPO imprints. American Library Association.
Παραπομπή σε μορφή Chicago (17η εκδ.)Wood, Jennings. United States Government Publications: A Partial List of Non-GPO Imprints. Chicago: American Library Association, 1964.
Παραπομπή σε μορφή MLA (9th εκδ.)Wood, Jennings. United States Government Publications: A Partial List of Non-GPO Imprints. American Library Association, 1964.
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