Williams, L. L., & Rogers, F. E. (1894). New practical English grammar: For use in business colleges, academies, normal and high schools, and advanced classes in public schools. American Book Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Williams, Louis L., و Fernando E. Rogers. New Practical English Grammar: For Use in Business Colleges, Academies, Normal and High Schools, and Advanced Classes in Public Schools. New York: American Book Co., 1894.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Williams, Louis L., و Fernando E. Rogers. New Practical English Grammar: For Use in Business Colleges, Academies, Normal and High Schools, and Advanced Classes in Public Schools. American Book Co., 1894.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.