Παραπομπή APA
Pickersgill, G. M., & Pickersgill, J. E. (1973). Contemporary economic systems: A comparative view. Englewood Cliffs, N.J.: Prentice-Hall.
Παραπομπή Chicago StylePickersgill, Gary M., and Joyce E. Pickersgill. Contemporary Economic Systems: A Comparative View. Englewood Cliffs, N.J.: Prentice-Hall, 1973.
Παραπομπή MLAPickersgill, Gary M., and Joyce E. Pickersgill. Contemporary Economic Systems: A Comparative View. Englewood Cliffs, N.J.: Prentice-Hall, 1973.
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