- Libro electrónicoThe Adventures of a Problem Solver IRichard V. Martin
- Libro electrónicoThe Adventures of a Problem Solver IvRichard V. Martin
- Libro electrónicoTgif and Other Short StoriesRichard V. Martin
- Libro electrónicoThe Adventures of a Problem Solver IiRichard V. Martin
- Libro electrónicoThe Adventures of a Problem Solver IiiRichard V. Martin