Butterfield, L. H., & Boyd, J. P. (1963). Historical editing in the United States: Papers read at the 150th annual meeting of the American Antiquarian Society. The proceedings of the American Antiquarian Society for October 1962. Sonderdruck.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Butterfield, L. H., و Julian P. Boyd. "Historical Editing in the United States: Papers Read at the 150th Annual Meeting of the American Antiquarian Society." The Proceedings of the American Antiquarian Society for October 1962. Sonderdruck 1963.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Butterfield, L. H., و Julian P. Boyd. "Historical Editing in the United States: Papers Read at the 150th Annual Meeting of the American Antiquarian Society." The Proceedings of the American Antiquarian Society for October 1962. Sonderdruck, 1963.