APA (7 ম সংস্করণ) উদ্ধৃতি

Sobel, D. (1996). Longitude: The true story of a lone genius who solved the greatest scientific problem of his time. Fourth Estate.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Sobel, Dava. Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. London: Fourth Estate, 1996.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Sobel, Dava. Longitude: The True Story of a Lone Genius Who Solved the Greatest Scientific Problem of His Time. Fourth Estate, 1996.