Cita APA (7a ed.)

Ayer, A. (1982). Philosohy in the Twentieth Century. Random House, Inc.

Cita Chicago Style (17a ed.)

Ayer, A.J. Philosohy in the Twentieth Century. New York, Estados Unidos: Random House, Inc, 1982.

Cita MLA (9a ed.)

Ayer, A.J. Philosohy in the Twentieth Century. Random House, Inc, 1982.