International Organization for Standardization. (1983). InternationaI Standard ISO 6891: Timber structures — Joints made with mechanical fasteners — General principles for the determination of strength and deformation characteristics (First edition.). International Organization for Standardization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)International Organization for Standardization. InternationaI Standard ISO 6891: Timber Structures — Joints Made with Mechanical Fasteners — General Principles for the Determination of Strength and Deformation Characteristics. First edition. Geneva, Switzerland: International Organization for Standardization, 1983.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)International Organization for Standardization. InternationaI Standard ISO 6891: Timber Structures — Joints Made with Mechanical Fasteners — General Principles for the Determination of Strength and Deformation Characteristics. First edition. International Organization for Standardization, 1983.