ASTM Committee D-2 on Petroleum Products and Lubricants. Subcommittee B on Automotive Lubricants. Section III on Gear Lubricants. (1987). Laboratory performance tests for automotive gear lubricants intended for API GL-5 service. ASTM.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ASTM Committee D-2 on Petroleum Products and Lubricants. Subcommittee B on Automotive Lubricants. Section III on Gear Lubricants. Laboratory Performance Tests for Automotive Gear Lubricants Intended for API GL-5 Service. Philadelphia, PA: ASTM, 1987.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)ASTM Committee D-2 on Petroleum Products and Lubricants. Subcommittee B on Automotive Lubricants. Section III on Gear Lubricants. Laboratory Performance Tests for Automotive Gear Lubricants Intended for API GL-5 Service. ASTM, 1987.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.