Qua, H. (1969). The relationship between erosive wear and the metallographic structure of heat-treated steels as related to their hardnesses.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Qua, Hock-chye. The Relationship Between Erosive Wear and the Metallographic Structure of Heat-treated Steels as Related to Their Hardnesses. [Kuala Lumpur], 1969.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Qua, Hock-chye. The Relationship Between Erosive Wear and the Metallographic Structure of Heat-treated Steels as Related to Their Hardnesses. 1969.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.