64e lettre à 91e lettre
- Publication type: Book chapter
- Book: Lettres choisies. Tome I. Lettres 1-131 (Lettres I-CXXXI)
- Pages: 201 to 252
- Reprint of the edition of: 1925
- Collection: Classiques Jaunes (The 'Yellow' Collection), n° 232
- Series: Littératures francophones