Dugopolski, M. (2004). Intermediate algebra (Fourth edition.). McGraw-Hill Higher Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDugopolski, Mark. Intermediate Algebra. Fourth edition. Boston: McGraw-Hill Higher Education, 2004.
एमएलए (8वां संस्करण) प्रशस्ति पत्रDugopolski, Mark. Intermediate Algebra. Fourth edition. McGraw-Hill Higher Education, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.