- Cărți electroniceThe Indian Space ProgrammeGurbir Singh
- Cărți electroniceYuri Gagarin in London and Manchester A Smile that Changed the World?Gurbir Singh
- Cărți electroniceIndia's Forgotten Rocket PioneerGurbir Singh
- Cărți electroniceMy Personal History of The British Interplanetary Society 1933 - 1937 LiverpoolLeslie Johnson
- Cărți electroniceIndia’s Forgotten Rocket PioneerGurbir Singh
- Cărți electroniceMy Personal History of The British Interplanetary Society 1933 - 1937 LiverpoolLeslie J Johnson