289611 Lancaster, P. (1976). Mathematics: Models of a real world. Englewood Cliffs, New Jersey : Prentice-Hall.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र289611 Lancaster, Peter. Mathematics: Models of a Real World. Englewood Cliffs, New Jersey : Prentice-Hall, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्र289611 Lancaster, Peter. Mathematics: Models of a Real World. Englewood Cliffs, New Jersey : Prentice-Hall, 1976.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.