(1799). The American almanac, for the year of our Lord 1800 ... calculated to serve either of the middle states, without any sensible variation. [electronic resource].
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)The American Almanac, for the Year of Our Lord 1800 ... Calculated to Serve Either of the Middle States, Without Any Sensible Variation. [electronic Resource]. 1799.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)The American Almanac, for the Year of Our Lord 1800 ... Calculated to Serve Either of the Middle States, Without Any Sensible Variation. [electronic Resource]. 1799.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.