Borsy, P., Gadea, R., Vera Sosa, E., & Sims, B. G. (2013). Forest management and conservation agriculture: Experiences of smallholder farmers in the eastern region of Paraguay. Plant Production and Protection Division, Food and Agriculture Organization of the United Nations.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Borsy, Paul, Rafael Gadea, Esteban Vera Sosa, و B. G. Sims. Forest Management and Conservation Agriculture: Experiences of Smallholder Farmers in the Eastern Region of Paraguay. Rome: Plant Production and Protection Division, Food and Agriculture Organization of the United Nations, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Borsy, Paul, et al. Forest Management and Conservation Agriculture: Experiences of Smallholder Farmers in the Eastern Region of Paraguay. Plant Production and Protection Division, Food and Agriculture Organization of the United Nations, 2013.