Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.