Cita APA (7a ed.)

Wedgwood, C. (1971). The thirty years war. Jonathan Cape.

Cita Chicago Style (17a ed.)

Wedgwood, C.V. The Thirty Years War. London: Jonathan Cape, 1971.

Cita MLA (8a ed.)

Wedgwood, C.V. The Thirty Years War. Jonathan Cape, 1971.