APA-referens

Johnson, E., & Krooss, H. E. (1960). American economy: An introduction to economics. Prentice-hall.

Chicago-stil citat

Johnson, E.A.J, och Herman E. Krooss. American Economy: An Introduction to Economics. New Jersey: Prentice-hall, 1960.

MLA-referens

Johnson, E.A.J, och Herman E. Krooss. American Economy: An Introduction to Economics. Prentice-hall, 1960.