- Libro electrónicoCanadian Warbirds - Jets and HelicoptersHarold Skaarup
- Libro electrónicoCannon in Canada, Province by Province, Volume 3Harold Skaarup
- Libro electrónicoCanadian Warbirds of the Biplane Era.Harold Skaarup
- Libro electrónicoCanadian Warbirds of the Second World War - Trainers, Transports and Utility AircraftHarold Skaarup
- Libro electrónicoCanadian Warbirds of the Second World War - Fighters, Bombers and Patrol AircraftHarold Skaarup
- Libro electrónicoCalifornia WarplanesHarold Skaarup
- Libro electrónicoCannon in Canada, Province by Province, Volume 2Harold Skaarup
- Libro electrónicoCannon in Canada, Province by Province, Volume 1Harold Skaarup
- Libro electrónicoCanadian Warbirds of the Biplane Era - Trainers, Transports and Utility AircraftHarold Skaarup
- Libro electrónicoCannon in Canada, Province by Province Volume 5Harold Skaarup
- Libro electrónicoCannon in Canada, Province by Province, Volume 4Harold Skaarup