- Libro electrónicoThe Fate of RomeKyle Harper
- Libro electrónicoPlagues upon the EarthKyle Harper
- Libro electrónicoSeries: The Princeton Economic History of the Western WorldJohn V.C. Nye
- Libro electrónicoSeries: The Princeton History of the Ancient WorldKyle Harper
- Libro electrónicoSeries: The Princeton History of the Ancient WorldKyle Harper