Cita APA

Duignan, P. (1980). The United States in the 1980's (Abridged ed.). Addison-Wesley.

Citación estilo Chicago

Duignan, Peter. The United States in the 1980's. Abridged ed. Reading, Mass: Addison-Wesley, 1980.

Cita MLA

Duignan, Peter. The United States in the 1980's. Abridged ed. Addison-Wesley, 1980.