APA-Zitierstil (7. Ausg.)

Helmus, T. M., & Arnsdorf, V. E. (1984). The United States and its neighbors. Silver Burdett.

Chicago-Zitierstil (17. Ausg.)

Helmus, Timothy M., und Val E. Arnsdorf. The United States and Its Neighbors. Morristown, NJ [u.a.]: Silver Burdett, 1984.

MLA-Zitierstil (9. Ausg.)

Helmus, Timothy M., und Val E. Arnsdorf. The United States and Its Neighbors. Silver Burdett, 1984.