000 nam a22 7a 4500
999 _c92
_d92
003 OSt
005 20210101020017.0
008 180426b xxu||||| |||| 00| 0 eng d
020 _a9788127268404
082 _a630.715
_bRAY
100 _aRay, G.L.
245 _aExtension communication and management. /
_cby G.L. ray
_hEnglish
260 _aNew Delhi :
_bKalyani Publishers ;
_c2016.
300 _a358 p.,
_c26 cm
942 _2ddc
_cBK
_04