Cita APA (7th ed.)

Brown, L. R. (1972). World without Borders. Random House.

Cita Chicago (17th ed.)

Brown, Lester R. World Without Borders. New York: Random House, 1972.

Cita MLA (9th ed.)

Brown, Lester R. World Without Borders. Random House, 1972.

Atenció: Aquestes cites poden no estar 100% correctes.