Cita APA (7a ed.)

Parker, G. (1984). The Thirty Years War. Routledge & Kegan Paul.

Cita Chicago Style (17a ed.)

Parker, Geoffrey. The Thirty Years War. London [etc.]: Routledge & Kegan Paul, 1984.

Cita MLA (9a ed.)

Parker, Geoffrey. The Thirty Years War. Routledge & Kegan Paul, 1984.