(1895). Vermont Agricultural experiment station: научное издание. Bulletin No 45, march 1895: I. Statement Regarding Publication of Analyses. II. Schedule of Trade Values.III. Analysis of Licensed Fertilizers. IV. Observance of the Fertilizer Law.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Vermont Agricultural Experiment Station: научное издание. Bulletin No 45, March 1895: I. Statement Regarding Publication of Analyses. II. Schedule of Trade Values.III. Analysis of Licensed Fertilizers. IV. Observance of the Fertilizer Law. 1895.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Vermont Agricultural Experiment Station: научное издание. Bulletin No 45, March 1895: I. Statement Regarding Publication of Analyses. II. Schedule of Trade Values.III. Analysis of Licensed Fertilizers. IV. Observance of the Fertilizer Law. 1895.