Califor, C. o. E. Earthquake engineering research at berkeley-1980. College of Engineering University of California.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিCalifor, College of Engineering. Earthquake Engineering Research at Berkeley-1980. College of Engineering University of California.
M.L.A (8 ম সংস্করণ) উদ্ধৃতিCalifor, College of Engineering. Earthquake Engineering Research at Berkeley-1980. College of Engineering University of California.
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