APA

Gibbon E., Womersley D., . (2005). The history of the decline and fall of the Roman empire. : Penguin books.

Chicago

Gibbon Edward, Womersley David, . 2005. The history of the decline and fall of the Roman empire. : Penguin books.

Harvard

Gibbon E., Womersley D., . (2005). The history of the decline and fall of the Roman empire. : Penguin books.

MLA

Gibbon Edward, Womersley David, . The history of the decline and fall of the Roman empire. : Penguin books. 2005.