APA (7 वां संस्करण) प्रशस्ति पत्र

Leftwich, R. H. (1966). The price system and resource allocation (3rd ed.). Holt, Rinehart and winston.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Leftwich, Richard H. The Price System and Resource Allocation. 3rd ed. New York: Holt, Rinehart and winston, 1966.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Leftwich, Richard H. The Price System and Resource Allocation. 3rd ed. Holt, Rinehart and winston, 1966.