The history of the decline and fall of the Roman empire.
By Edward Gibbon. With variorum notes, including those by Guizot, Wenck, Schreiter, and Hugo.

APA Citation

Gibbon, E. (1891). The history of the decline and fall of the Roman empire. London: G. Bell and sons.

MLA Citation

Gibbon, Edward, 1737-1794. The History of the Decline And Fall of the Roman Empire. London: G. Bell and sons, 1891.

Warning: These citations may not always be complete (especially for serials).