Não informado. (1912). Inventory of seeds and plants imported. Bureau of Plant Industry, Soils and Agricultural Engineering.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Inventory of Seeds and Plants Imported. Washington: Bureau of Plant Industry, Soils and Agricultural Engineering, 1912.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Inventory of Seeds and Plants Imported. Bureau of Plant Industry, Soils and Agricultural Engineering, 1912.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.