Robertson, David, author
Europa Publications Limited, 1987
Buku Referensi
edited by Geoffrey Parker
Cambridge University Press, 1995
Buku Referensi
Keegan, John, author
Pimlico, 1994
Buku Teks
editor-in-chief, Trevor N. Dupuy
Brassey's, 1993
Buku Referensi
editor-in-chief, Trevor N. Dupuy, Franklin D. Margiotta, James B. Motley and David L. Bongard
Brassey's, 1993
Buku Referensi