Bunch, R. (1982). Two ears of corn: A guide to people-centered agricultural improvement. World Neighbors.
芝加哥风格引文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.
MLA引文Bunch, Roland. Two Ears of Corn: A Guide to People-centered Agricultural Improvement. World Neighbors, 1982.
警告:这些引文格式不一定是100%准确.