Παραπομπή σε μορφή APA (7η εκδ.)

Tresch, . R. W., & Leathers, C. G. (1994). Instructor's manual to accompany principles of economics. West Publishing Company.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Tresch, Richard W., και Charles G. Leathers. Instructor's Manual to Accompany Principles of Economics. Minneapolis/St. Paul: West Publishing Company, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Tresch, Richard W., και Charles G. Leathers. Instructor's Manual to Accompany Principles of Economics. West Publishing Company, 1994.