Carroll, Lewis and Martin Gardner. Lewis Carroll's The Hunting of the Snark: The Annotated Snark. London: William Kaufmann, 1982. ISBN 978-0-913232-36-1.
Gibson, James N. Nuclear Weapons of the United States: An Illustrated History . Atglen, Pennsylvania: Schiffer Publishing Ltd., 1996. ISBN 0-7643-0063-6.
Zaloga, Steven J. "Chapter 5." Target America: The Soviet Union and the Strategic Arms Race, 1945-1964. New York: Presido Press, 1993. ISBN O-89141-400-2.
