Floud, Roderick
An introduction to quantitative methods for historians
Princeton University Press, 1973
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Roman imperialism : readings and sources
Blackwell Publishing, 2004
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Dubs, Homer H.
A Roman city in ancient China
China Society, 1957
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Historians and their information sources Margaret Stieg Dalton and Laurie Charnigo
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Robinson, O.F.
Ancient rome : city planning and administration / O.F. Robinson
Routledge, 1994
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