By Green, Charles.
New York Barnes & Noble 1963 .
168 p. 22 cm..
085036101X

By Anderson, George Kumler.
Princeton, N.J. Princeton University Press 1949 .
ix, 444 p. , 920204

By Stenton, F. M..
Oxford, [Eng.] Clarendon Press 1965 .
747 p. 22 cm..

By Wilson, David M..
New York Frederick A. Praeger 1960 .
231 p.,

By Hunter Blair, Peter.
Cambridge Cambridge University Press 1966 .
xvi, 381 p., [8] leaves of plates , Includes index.

By Hodgkin, Robert Howard.
London Oxford University Press 1952 .
2 v. (xxxi, 796 p.) 25 cm..

By Scott, Walter.
Norwalk,Connrcticut Heritage Press 1950 .
xxvi,471 p. 24 cm..