Παραπομπή σε μορφή APA (7η εκδ.)

Upjohn, R., & Ruffin, M. H. (1997). Internet resources for economic educators. National Council on Economic Education Center for Civil Society International.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Upjohn, Richard, και M. Holt Ruffin. Internet Resources for Economic Educators. [New York], [Seattle, Washignton]: National Council on Economic Education Center for Civil Society International, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Upjohn, Richard, και M. Holt Ruffin. Internet Resources for Economic Educators. National Council on Economic Education Center for Civil Society International, 1997.