APA (7 वां संस्करण) प्रशस्ति पत्र

Purdy, H. L., Lindahl, M. L., & Carter, W. A. (1950). Corporate concentration and public policy (2d ed.). Prentice-Hall.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Purdy, Harry L., M. L. Lindahl, और W. A. Carter. Corporate Concentration and Public Policy. 2d ed. New York: Prentice-Hall, 1950.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Purdy, Harry L., et al. Corporate Concentration and Public Policy. 2d ed. Prentice-Hall, 1950.