@BOOK{ Book!D - 104532656, AUTHOR = "Raymond J. Roark", TITLE = "Formulas for stress and strain", LIBRARY= "کتابخانه مرکزی و مرکز نشر دانشگاه بیرجند (دکتر محمد حسن گنجی)", SUBJECT = "، Strength of materials- tables,، Strain and stresses- Tables", URL = "/book/104532656/Formulas-for-stress-and-strain/"}