Marcus Tullius Cicero, M. Tulli Ciceronis. De re publica, De legibus, Cato Maior de senectute, Laelius de amicitia. Edited by Jonathan G. F. Powell. Oxford Classical Texts. Oxford and New York: Oxford University Press, 2006.    

Overview:

The most recent Latin text for De republica and De legibus.  Powell makes some substantial changes to the placement of fragments from the earlier editions. This text is becoming the new standard edition.

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