Adams, E. F. (1899). The modern farmer in his business relations: A study of some of the principles underlying the art of profitable farming and marketing, and of the interests of farmers as affected by modern social and economic conditions and forces. N.J. Stone Co..
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Adams, Edward Francis. The Modern Farmer in His Business Relations: A Study of Some of the Principles Underlying the Art of Profitable Farming and Marketing, and of the Interests of Farmers as Affected by Modern Social and Economic Conditions and Forces. San Francisco, Cal.: N.J. Stone Co., 1899.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Adams, Edward Francis. The Modern Farmer in His Business Relations: A Study of Some of the Principles Underlying the Art of Profitable Farming and Marketing, and of the Interests of Farmers as Affected by Modern Social and Economic Conditions and Forces. N.J. Stone Co., 1899.