APA-viite (7. p.)

Amacher, R. C., & Ulbrich, H. H. (1995). Economic principles & policy (6th ed.). South-Western College.

Chicago-viite (17. p.)

Amacher, Ryan C., ja Holley H. Ulbrich. Economic Principles & Policy. 6th ed. Cincinnati: South-Western College, 1995.

MLA-viite (9. p.)

Amacher, Ryan C., ja Holley H. Ulbrich. Economic Principles & Policy. 6th ed. South-Western College, 1995.