Spencer, B. F., & Hu, Y. X. (2001). Earthquake engineering frontiers in the new millennium. A. A.Balkema Publishers.
استشهاد بنمط شيكاغوSpencer, B. F., و Y. X. Hu. Earthquake Engineering Frontiers in the New Millennium. Lisse: A. A.Balkema Publishers, 2001.
MLA استشهادSpencer, B. F., و Y. X. Hu. Earthquake Engineering Frontiers in the New Millennium. A. A.Balkema Publishers, 2001.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.