Wint, Guy
Penguin Books, 1955
Buku Teks
Gordon, Stewart, author
Ufuk Press, 2008
Buku Teks
Murphey, Rhoads, author
Harper Collins, 1992
Buku Teks
Rosinger, Lawrence K., author
Alfred A. Knopf, 1951
Buku Teks
edited for the International Commission for a History of the Scientific and Cultural Development of Mankind by Guy S. Metraux and Francois Crouzet.
New American Library, 1965
Buku Teks