00277nam a2200109Ia 450000500170000000800410001708200140005810000170007224500260008926000440011530000080015920260225044758.0260224s9999||||xx |||||||||||||| ||und||  a624.1 KHU  aR.S. Khurmi  0aTheory of structures   aNew Delhi: S. Chand & Company Ltdc1986  a772