Trecker, H. B. (1973). Goals for social welfare, 1973-1993; an overview of the next two decades. Association Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTrecker, Harleigh B. Goals for Social Welfare, 1973-1993; an Overview of the Next Two Decades. New York: Association Press, 1973.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTrecker, Harleigh B. Goals for Social Welfare, 1973-1993; an Overview of the Next Two Decades. Association Press, 1973.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.