R.R. Bowker Company. Department of Bibliography, R.R. Bowker Company. Product Development Department, & R.R. Bowker Company. Publications Systems Department. (1980). American book publishing record cumulative, 1876-1949: An American national bibliography. R.R. Bowker Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)R.R. Bowker Company. Department of Bibliography, R.R. Bowker Company. Product Development Department, و R.R. Bowker Company. Publications Systems Department. American Book Publishing Record Cumulative, 1876-1949: An American National Bibliography. New York: R.R. Bowker Co., 1980.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)R.R. Bowker Company. Department of Bibliography, et al. American Book Publishing Record Cumulative, 1876-1949: An American National Bibliography. R.R. Bowker Co., 1980.