Colean, Miles L., author
Twentieth Century Fund, 1953
Buku Teks
Bissell, David, 1982-, author
The MIT Press, 2018
Buku Teks
Sievert, Thomas, author
Spon Press, 2003
Buku Teks
Mumford, Lewis, author
Harcourt, Brace, 1938
Buku Teks
edited by Andrew Blowers, Chris Hammett and Philip Sarre
Hutchinson Educational in association with the Open University Press, 1974
Buku Teks