توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

GREENLAND, D. (1981). Characterization of soils in relation: To their classification and management for crop production. Clarendon Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

GREENLAND, D.J. Characterization of Soils in Relation: To Their Classification and Management for Crop Production. Oxford: Clarendon Press, 1981.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

GREENLAND, D.J. Characterization of Soils in Relation: To Their Classification and Management for Crop Production. Clarendon Press, 1981.