Curvo, P.F. <br/><br/>
Analysis of the informal comunication patterns among professionals in agricultural research and extension service activities 

 - Stanford (USA):   1983.  
 - 243 p. 
<br/><br/> Bibliography p. 148-153; Summary (Eng) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Extensao Rural<br/>Comunicacao<br/>Pesquisa Agricola<br/>Extensionista<br/>Pesquisador