1. Sustainable development: challenges to the profession of agricultural economics;Batie;Am. J. Agric. Econ.,1989
2. Directions;Beall,1990
3. Factors Involved in the Deforestation of Tropical Forests;Belk,1990
4. The Transition to Sustainable Agriculture: A Two Year Review of AID's Agricultural and Rural Development Programs and an Agenda for the 1990s,1989
5. Efficient utilization of feed resources for livestock production;Conrad,1983