[400 BC] Tao te ching

References
1 
@book{guin2019lao,
  title={Lao Tzu: Tao Te Ching: A Book about the Way and the Power of the Way},
  author={Guin, U.K.L.},
  isbn={9781611807240},
  lccn={2020301255},
  url={https://books.google.co.cr/books?id=9MKSDwAAQBAJ},
  year={2019},
  publisher={Shambhala}
}

In openlibrary.