Jackson, S., & Nicholson, R. (1983). The citadel of chaos. Puffin Books.
Cita Chicago (17th ed.)Jackson, Steve, i Russ Nicholson. The Citadel of Chaos. Harmondsworth: Puffin Books, 1983.
Cita MLA (9th ed.)Jackson, Steve, i Russ Nicholson. The Citadel of Chaos. Puffin Books, 1983.
Atenció: Aquestes cites poden no estar 100% correctes.