APA (7e ed.) Bronvermelding

United States Information Agency. American sketchbook. Short biosketches of 21 distinguished americans.

Chicago (17e ed.) Bronvermelding

United States Information Agency. American Sketchbook. Short Biosketches of 21 Distinguished Americans.

MLA (8e ed.) Bronvermelding

United States Information Agency. American Sketchbook. Short Biosketches of 21 Distinguished Americans.

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