Pollard, W. L., & Hart, A. W. (1920). Digest of decisions of law and practice in the Patent Office and the United States courts in patents, trade-marks, copyrights and labels, 1912-1919: A supplement to Pollard's digest, 1897-1912. J. Byrne..
Παραπομπή σε μορφή Chicago (17η εκδ.)Pollard, W. L., και Amos W. Hart. Digest of Decisions of Law and Practice in the Patent Office and the United States Courts in Patents, Trade-marks, Copyrights and Labels, 1912-1919: A Supplement to Pollard's Digest, 1897-1912. Washington, D.C.: J. Byrne., 1920.
Παραπομπή σε μορφή MLA (8th εκδ.)Pollard, W. L., και Amos W. Hart. Digest of Decisions of Law and Practice in the Patent Office and the United States Courts in Patents, Trade-marks, Copyrights and Labels, 1912-1919: A Supplement to Pollard's Digest, 1897-1912. J. Byrne., 1920.