00294nam a2200109Ia 450000500170000000800410001708200140005810000170007224500400008926000470012930000080017620260225050937.0260224s9999||||xx |||||||||||||| ||und||  a624.1 BEN  aP.P. Benham  0aMechanics of solids and structures   aIslamabad: National Book Foundation c1973  a664