APA-ийн эшлэл(7 дахь хэвлэлт)

McCaughey, R. (2014). A lever long enough: A history of Columbia's School of Engineering and Applied Science since 1864. Columbia University Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

McCaughey, Robert. A Lever Long Enough: A History of Columbia's School of Engineering and Applied Science Since 1864. New York: Columbia University Press, 2014.

MLA -ийн эшлэл (9 дэх хэвлэлт)

McCaughey, Robert. A Lever Long Enough: A History of Columbia's School of Engineering and Applied Science Since 1864. Columbia University Press, 2014.