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The Evolution of the English Corn Market from the 12th to the 18th Century
Gras, Norman Scott Brien,
The early English customs system : a documentary study of the institutional and econ. history of the customs from the 13. to the 16. cent.
Gras, Norman Scott Brien, (1918)
The economic and social history of an English village (Gawley, Hampshire) A. D. 909 - 1928
Gras, Norman Scott Brien, (1930)