000 00901nam a22002417a 4500
001 BR8405443
003 BR-BrBNA
005 20240215131847.0
007 ta
008 230509b bl.||||| |||| 00| 0 por d
040 _aBR-BrBNA
_bpor
_cBiblioteca Nacional de Agricultura
041 _a(Por)
072 _aA50; C20
090 _aA50
_bBR8405443
100 1 _aCurvo Filho, Plácido Flaviano
110 1 _aCentro Nacional de Informacao Documental Agricola, Brasilia, DF (Brasil)
_0Tese (PHD)
_91726
245 1 _aAnalysis of the informal communication patterns among professionals in agricultural research and extension service activities (submitted in partial fulfillment of the requirements for the decree of doctor of philosophy)
_bDOC/TEC/024/84
260 3 _aBrasilia, DF (Brasil):
_c1984.
300 _a246 p.
650 _aPESQUISA AGRICOLA
650 _aEXTENSAO RURAL
942 _cBK
_2AGRIS
999 _c36836
_d36836