Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.