Cita APA (7th ed.)

Bruce, R. V. (1989). The shadow of a coming war. Gettysburg College.

Cita Chicago (17th ed.)

Bruce, Robert V. The Shadow of a Coming War. Gettysburg: Gettysburg College, 1989.

Cita MLA (9th ed.)

Bruce, Robert V. The Shadow of a Coming War. Gettysburg College, 1989.