Califor, C. o. E. Earthquake engineering research at berkeley-1980. College of Engineering University of California.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Califor, College of Engineering. Earthquake Engineering Research at Berkeley-1980. College of Engineering University of California.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Califor, College of Engineering. Earthquake Engineering Research at Berkeley-1980. College of Engineering University of California.
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