APA (7 वां संस्करण) प्रशस्ति पत्र

Walker, B. (1981). Welfare economics and urban problems. Methuen.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Walker, Bruce. Welfare Economics and Urban Problems. London: Methuen, 1981.

एमएलए (9वां संस्करण) प्रशस्ति पत्र

Walker, Bruce. Welfare Economics and Urban Problems. Methuen, 1981.