Analysis 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) DOC/TEC/024/84 - Curvo Filho, Plácido Flaviano; Centro Nacional de Informacao Documental Agricola, Brasilia, DF (Brasil) (Brasilia, DF (Brasil), 1984)
Keywords: PESQUISA AGRICOLA; EXTENSAO RURAL