INTERPAKS, Mimeographed, 1981. Paper presented at World Bank Symposium on Promoting Increased Food Production in the 1980's, January 5-9, 1981. 38 p., Provides a state-of-the-art understanding of the critical issues and lessons about agricultural extension programs and the role of extension in different agricultural production systems. Identifies the major components of various extension approaches and describes a process to strengthen the linkages between agricultural research and farmers who are the target audience as well as the basic building block of all farming systems. Concludes with several suggestions of ways to improve existing extension systems.