Cita APA (7th ed.)

Osiander, A. (1994). The states system of Europe, 1640-1990. Clarendon Press.

Cita Chicago (17th ed.)

Osiander, Andreas. The States System of Europe, 1640-1990. Oxford: Clarendon Press, 1994.

Cita MLA (9th ed.)

Osiander, Andreas. The States System of Europe, 1640-1990. Clarendon Press, 1994.