Cita APA (7a ed.)

Ison, S., & Wall, S. (1993). Economics. longman ; Pitman publishing.

Cita Chicago Style (17a ed.)

Ison, Stephen, y Stuart Wall. Economics. London: longman ; Pitman publishing, 1993.

Cita MLA (8a ed.)

Ison, Stephen, y Stuart Wall. Economics. longman ; Pitman publishing, 1993.