Notes on the non-conventional literature of agricultural development : some definitions and misconceptions /
Baulkwill, W. J.(William John),1919-
Posnett, Norman William.
Surbiton, Surrey :  Land Resources Division, Ministry of Overseas Development, 
1975.
Unofficial papers presented to the Working Group for Development Literature and Economics at the 2nd FAO Expert Consultation on AGRIS Tropical, Rome, 1-4 December 1975.