Francis, W. N. (1965). The english language: An introduction. Background for writing. W.W. Norton & Co.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFrancis, W. Nelson. The English Language: An Introduction. Background for Writing. New York, Estados Unidos: W.W. Norton & Co, 1965.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFrancis, W. Nelson. The English Language: An Introduction. Background for Writing. W.W. Norton & Co, 1965.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.