Economics in Farming M L Dantwala Crucial Issues for Fourth Plan H B Shivamaggi Magnitude of Tenancy Dharm Narain P C Joshi Big Farmers of Punjab Ashok Rudra. A Majid B D Talib Green Revolution in Bihar Wolf Ladejinsky 1968-69 Crop : Contribution of Weather and New Technology Ralph W Cummings, Jr S K Ray Demand for Fertilisers Gunvant M Desai John W Mellor Review of Agriculture is published four times a year, on the last Saturday of March, June, September and December.