Pseudo-Plutarch, Placita Philosophorum, book 2, Περὶ ἐνιαυτοῦ, πόσοσ ἑκάστου τῶν πλανητῶν χρόνοσ, καὶ τίσ ὁ μέγασ ἐνιαυτόσ. 2:

(위 플루타르코스, Placita Philosophorum, book 2, Περὶ ἐνιαυτοῦ, πόσοσ ἑκάστου τῶν πλανητῶν χρόνοσ, καὶ τίσ ὁ μέγασ ἐνιαυτόσ. 2:)