000 00261nam a22000977a 4500
999 _c516953
_d516953
082 _aTNC
100 _aDas, R. B.
_923818
245 _aFormulation and execution of block plans :
_bA case study
_cby R. B. Das
260 _aNew Delhi
_bOxford
_c1968
300 _a154p.