TY - GEN AU - Khanna , B.S AU - Pandey , I.M. ;Ahuja , G.K. ;Batra , S.C.L TI - Practical costing SN - 8121909171 U1 - 657.42 PY - 1972/// CY - New Delhi PB - S.Chand and Company KW - PRACTICAL-COSTING ER -