MLA

Cicero, Marcus Tullius, and William Armistead Falconer. De Senectute : De Amicitia ; De Divinatione. Cambridge, Mass.: Harvard University Press , 1923.

APA

Cicero, M. Tullius, & Falconer, W. Armistead. (1923). De senectute : De amicitia ; De divinatione. Cambridge, Mass.: Harvard University Press .

Chicago

Cicero, Marcus Tullius., William Armistead Falconer, Marcus Tullius Cicero, and Marcus Tullius Cicero. De Senectute: De Amicitia ; De Divinatione. Cambridge, Mass.: Harvard University Press, 1923.