Cita APA (7a ed.)

Petrie, J. N. (1995). American neutrality in the 20th century: The impossible dream. Institute for National Strategic Studies.

Cita Chicago Style (17a ed.)

Petrie, John N. American Neutrality in the 20th Century: The Impossible Dream. Washington, D.C.: Institute for National Strategic Studies, 1995.

Cita MLA (8a ed.)

Petrie, John N. American Neutrality in the 20th Century: The Impossible Dream. Institute for National Strategic Studies, 1995.