Roy A. Gallant
Source: "Roy A. Gallant Bibliography." Author Wars, https://authorwars.com/authors/roy-a-gallant.html".
Titles:
Essays
Non-fiction
- Unknown. Exploring Mars
- Unknown. Exploring the Moon
- Unknown. Exploring the Planets
- Unknown. Exploring the Sun
- Unknown. Exploring the Universe
- Unknown. National Geographic Picture Atlas of Our Universe