- E-bookThe Adventures of Captain PoloAlan J Hesse
- E-bookCaptain Polo and the Halloween PartyAlan J Hesse
- E-bookCharles Darwin and the Theory of Natural SelectionAlan J Hesse
- E-bookThe Adventures of Captain PoloAlan J Hesse
- E-bookCaptain Polo at the North PoleAlan J Hesse
- E-bookSéries: The Adventures of Polo the BearAlan J Hesse
- E-bookThe Adventures of Captain Polo (Book 1)Alan J Hesse
- E-bookThe Adventures of Captain PoloAlan J Hesse
- E-bookCaptain Polo and the Halloween PartyAlan J Hesse
- E-bookThe Adventures of Captain PoloAlan J Hesse
- E-bookSéries: The Adventures of Captain PoloAlan J Hesse
- E-bookThe Adventures of Captain Polo (Book 4)Alan J Hesse
- E-bookFables of the AmazonAlan J Hesse