Cortina, J., Elder, J., & Gonnet, K. (1995). Opening doors: Understanding college reading. McGraw-Hill.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCortina, Joe, Janet Elder, और Katherine Gonnet. Opening Doors: Understanding College Reading. New York: McGraw-Hill, 1995.
एमएलए (8वां संस्करण) प्रशस्ति पत्रCortina, Joe, et al. Opening Doors: Understanding College Reading. McGraw-Hill, 1995.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.