APA (7e ed.) Bronvermelding

Library of Congress. Copyright Office. U.S. Copyright Renewals, 1956 July - December.

Chicago (17e ed.) Bronvermelding

Library of Congress. Copyright Office. U.S. Copyright Renewals, 1956 July - December.

MLA (9e ed.) Bronvermelding

Library of Congress. Copyright Office. U.S. Copyright Renewals, 1956 July - December.

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