Hutson, C. H. (1923). The hydrogen-ion concentration of soil solutions as affected by gypsum, lime, and certain fertilizers.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Hutson, Chester Harold. The Hydrogen-ion Concentration of Soil Solutions as Affected by Gypsum, Lime, and Certain Fertilizers. 1923.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Hutson, Chester Harold. The Hydrogen-ion Concentration of Soil Solutions as Affected by Gypsum, Lime, and Certain Fertilizers. 1923.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.