Bunch, R. (1982). Two ears of corn: A guide to people-centered agricultural improvement. World Neighbors.
Cita Chicago (17th ed.)Bunch, Roland. Two Ears of Corn: A Guide to People-centered Agricultural Improvement. Oklahoma City, Okla. (5116 North Portland, Oklahoma City 73112): World Neighbors, 1982.
Cita MLA (8th ed.)Bunch, Roland. Two Ears of Corn: A Guide to People-centered Agricultural Improvement. World Neighbors, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.