Dow, A. (2009). Pegasus, the heart of the Harrier: The history and development of the world's first operational vertical take-off and landing jet engine. Pen & Sword Aviation.
Citace podle Chicago (17th ed.)Dow, Andrew. Pegasus, the Heart of the Harrier: The History and Development of the World's First Operational Vertical Take-off and Landing Jet Engine. South Yorkshire, England: Pen & Sword Aviation, 2009.
Citace podle MLA (9th ed.)Dow, Andrew. Pegasus, the Heart of the Harrier: The History and Development of the World's First Operational Vertical Take-off and Landing Jet Engine. Pen & Sword Aviation, 2009.
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