Cita APA (7a ed.)
Anderson, P. The Trouble Twisters. Berkley Books.
Cita estilo Chicago (17a ed.)
Anderson, Poul. The Trouble Twisters. Nueva York, EUA: Berkley Books.
Cita MLA (9a ed.)
Anderson, Poul. The Trouble Twisters. Berkley Books.
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