1. Differential perception of the characteristics of innovations of farming couples for high yielding varieties of wheat and family planning practices Collection: Agricultural Communications Documentation Center (ACDC) Contributers: Knight, A. John (author) and Arul Raj, S. (author) Format: Journal article Publication Date: 1978 Published: India Location: Agricultural Communications Documentation Center, Funk Library, University of Illinois Document Number: C18816 Journal Title: Indian Journal of Extension Education Journal Title Details: 14 (1/2) : 64-65