1. Extension Science: Increasing preoccupied with knowledge systems Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Roling, Neils (author) Format: Journal article Publication Date: 1985-03 Published: USA Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C26583 Journal Title: Sociologia Ruralis Journal Title Details: 25(3/4): 269-90