Παραπομπή APA

Pickersgill, G. M., & Pickersgill, J. E. (1974). Contemporary Economic systems, a Comparative View. Prentice-Hall of India.

Παραπομπή Chicago Style

Pickersgill, Gary M., και Joyce E. Pickersgill. Contemporary Economic Systems, a Comparative View. New Jersy: Prentice-Hall of India, 1974.

Παραπομπή MLA

Pickersgill, Gary M., και Joyce E. Pickersgill. Contemporary Economic Systems, a Comparative View. Prentice-Hall of India, 1974.