APA-referens (7:e uppl.)
Earle, J. (2010). Commodore squib: The life, times and secretive wars of England's first rocket man, Sir William Congreve, 1772-1828. Cambridge Scholars.
Chicago-referens (17:e uppl.)
Earle, James. Commodore Squib: The Life, Times and Secretive Wars of England's First Rocket Man, Sir William Congreve, 1772-1828. Newcastle upon Tyne: Cambridge Scholars, 2010.
MLA-referens (9:e uppl.)
Earle, James. Commodore Squib: The Life, Times and Secretive Wars of England's First Rocket Man, Sir William Congreve, 1772-1828. Cambridge Scholars, 2010.
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