Cita APA (7th ed.)

(1980). Working in the twenty-first century. Wiley.

Cita Chicago (17th ed.)

Working in the Twenty-first Century. New York: Wiley, 1980.

Cita MLA (9th ed.)

Working in the Twenty-first Century. Wiley, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.