Frederick, F. (2010). The Cobra. Tata McGraw-Hill Publishing Company Ltd.
Cita Chicago (17th ed.)Frederick, Forsyth. The Cobra. New Delhi: Tata McGraw-Hill Publishing Company Ltd, 2010.
Cita MLA (9th ed.)Frederick, Forsyth. The Cobra. Tata McGraw-Hill Publishing Company Ltd, 2010.
Atenció: Aquestes cites poden no estar 100% correctes.