APA (7e ed.) Bronvermelding

Armstrong, H. W. (1979). The wonderful world tomorrow what it will be like. Everest House.

Chicago (17e ed.) Bronvermelding

Armstrong, Herbert W. The Wonderful World Tomorrow What It Will Be like. New York: Everest House, 1979.

MLA (9e ed.) Bronvermelding

Armstrong, Herbert W. The Wonderful World Tomorrow What It Will Be like. Everest House, 1979.

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