International Forum on Soil Taxonomy and Agrotechnology Transfer. 7th. (1985). Soil taxonomy: Tool for agrotechnology transfer. Proceedings seventh international forum on soil taxonomy and agrotechnology transfer. SMSS and PCARRD.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Forum on Soil Taxonomy and Agrotechnology Transfer. 7th. Soil Taxonomy: Tool for Agrotechnology Transfer. Proceedings Seventh International Forum on Soil Taxonomy and Agrotechnology Transfer. Los Banos, Laguna, Philippines: SMSS and PCARRD, 1985.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Forum on Soil Taxonomy and Agrotechnology Transfer. 7th. Soil Taxonomy: Tool for Agrotechnology Transfer. Proceedings Seventh International Forum on Soil Taxonomy and Agrotechnology Transfer. SMSS and PCARRD, 1985.