edited by V.A.C. Gatrell, Bruce Lenman, and Geoffrey Parker
Europa Publications, 1980
Buku Referensi
Freymond, Jacques, author
Frederick A. Preager, 1964
Buku Teks
Childe, V. Gordon, author
Routledge, 1996
Buku Teks
Brunn, Geoffrey
Oxford University Press, 1960
Buku Teks
Macmillan, 1970
Buku Teks