Frederick, F. (2010). The Cobra. Tata McGraw-Hill Publishing Company Ltd.
Chicago Style aipamenaFrederick, Forsyth. The Cobra. New Delhi: Tata McGraw-Hill Publishing Company Ltd, 2010.
MLA aipamenaFrederick, Forsyth. The Cobra. Tata McGraw-Hill Publishing Company Ltd, 2010.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.