Upjohn, R., & Ruffin, M. H. (1997). Internet resources for economic educators. National Council on Economic Education Center for Civil Society International.
芝加哥风格引文Upjohn, Richard, 与 M. Holt Ruffin. Internet Resources for Economic Educators. [New York], [Seattle, Washignton]: National Council on Economic Education Center for Civil Society International, 1997.
MLA引文Upjohn, Richard, 与 M. Holt Ruffin. Internet Resources for Economic Educators. National Council on Economic Education Center for Civil Society International, 1997.
警告：这些引文格式不一定是100％准确.