Appiano di Alessandria, Historia Romana, libro XIV, De bellis civilibus II, 104: ὅτι πολλάκις μὲν ἀγωνίσαιτο περὶ νίκης, νῦν δὲ καὶ περὶ ψυχῆς.
(36) Giulio Cesare, Bellum Gallicum, VIII, 52: "Pose a capo della Gallia Togata T. Labieno, affinché per suo mezzo la regione collaborasse maggiormente alla sua candidatura al consolato".
(37) R. Syme, The Allegiance of Labienus, in "The Journal of Roman Studies", XXVIII (1938), pp. 113-125, in A. Morello, Titus Labienus et Cingulum - Quintus Labienus Parthicus, cit, p. 41
(38) F. F. Abbott, Titus Labienus, in A. Morello, Titus Labienus et Cingulum - Quintus Labienus Parthicus, cit., p. 18
(39) F. Münzer, Labienus, cit., p. 266
(40) R. Syme, The Allegiance of Labienus, in A. Morello, Titus Labienus et Cingulum - Quintus Labienus Parthicus, cit., p. 41 nota 63
(41) T. R. S. Broughton, The Magistrates of the Roman Republic, vol. III - Supplement, Scholars Press, Atlanta 1986: "He very probably had been praetor by 59" web
(42) R. Syme, The Allegiance of Labienus, in A. Morello, Titus Labienus et Cingulum - Quintus Labienus Parthicus, cit., pp. 41-42