00290nam a2200109Ia 450000500170000000800410001708200150005810000150007324500370008826000470012530000080017220260225050939.0260224s9999||||xx |||||||||||||| ||und||  a620.19 FOR  aHugh Ford  0aAdvanced mrchanics of materials   aIslamabad: National Book Foundation c1972  a672