Παραπομπή APA

(1990). American perspectives: The United States in the modern age. Washington: United States Information Agency.

Παραπομπή Chicago Style

American Perspectives: The United States in the Modern Age. Washington: United States Information Agency, 1990.

Παραπομπή MLA

American Perspectives: The United States in the Modern Age. Washington: United States Information Agency, 1990.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.