Παραπομπή σε μορφή APA (7η εκδ.)

Tower, E. (1995). Economics reading lists, course outlines, exams, puzzles & problems. Eno River Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Tower, Edward. Economics Reading Lists, Course Outlines, Exams, Puzzles & Problems. Chapel Hill, N.C.: Eno River Press, 1995.

Παραπομπή σε μορφή MLA (8th εκδ.)

Tower, Edward. Economics Reading Lists, Course Outlines, Exams, Puzzles & Problems. Eno River Press, 1995.