Cita APA (7th ed.)

Life Books (Firm). (2002). The American spirit: Meeting the challenge of September 11. Life Books.

Cita Chicago (17th ed.)

Life Books (Firm). The American Spirit: Meeting the Challenge of September 11. New York: Life Books, 2002.

Cita MLA (9th ed.)

Life Books (Firm). The American Spirit: Meeting the Challenge of September 11. Life Books, 2002.

Atenció: Aquestes cites poden no estar 100% correctes.