APA (7 वां संस्करण) प्रशस्ति पत्र

Lipsey, R. (1986). An intro to positive economics (6th.). ELBS.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Lipsey, Richard. An Intro to Positive Economics. 6th. London: ELBS, 1986.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Lipsey, Richard. An Intro to Positive Economics. 6th. ELBS, 1986.