APA (7e ed.) Bronvermelding

Clark, G. (1990). Outline of the U S Economy. United States Department of State.

Chicago (17e ed.) Bronvermelding

Clark, George. Outline of the U S Economy. United States Department of State, 1990.

MLA (9e ed.) Bronvermelding

Clark, George. Outline of the U S Economy. United States Department of State, 1990.

Let op: Deze citaties zijn niet altijd 100% accuraat.