000 003980000a22001450004500
020 _a81-85421-07-2
082 _a630.715 RAY
100 _aRay, G L
245 _aExtension communication and management
260 _aCalcutta, Naya prakash
260 _c1991
300 _a232
650 _aExtension communication- management/ Extension communication/ Rural development - India
942 _cBK
999 _c212800
_d212800