Cita APA (7th ed.)

Pickersgill, G. M., & Pickersgill, J. E. (1974). Contemporary economic systems. A comparative view. Prentice Hall.

Cita Chicago (17th ed.)

Pickersgill, Gary M., i Joyce E. Pickersgill. Contemporary Economic Systems. A Comparative View. Upper Saddle River: Prentice Hall, 1974.

Cita MLA (9th ed.)

Pickersgill, Gary M., i Joyce E. Pickersgill. Contemporary Economic Systems. A Comparative View. Prentice Hall, 1974.