APA (7th ed.) Citation

Sobel, D. (2005). Longitude: The true story of a lone genius who solved the greatest scientific problem of his time. Harper Perennial.

Chicago Style (17th ed.) Citation

Sobel, Dava. Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. London: Harper Perennial, 2005.

MLA (9th ed.) Citation

Sobel, Dava. Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. Harper Perennial, 2005.