Cicero, M. T. (1983). Cicero's essays on old age and on friendship: The original text reduced to the natural English order with a literal interlinear translation. Handy Book.
Цитирование в стиле Чикаго (17-е изд.)Cicero, Marcus Tullius. Cicero's Essays on Old Age and on Friendship: The Original Text Reduced to the Natural English Order with a Literal Interlinear Translation. Harrisburg, Pa: Handy Book, 1983.
Цитирование MLA (9-е изд.)Cicero, Marcus Tullius. Cicero's Essays on Old Age and on Friendship: The Original Text Reduced to the Natural English Order with a Literal Interlinear Translation. Handy Book, 1983.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.