Nasa Mars Conference, July 21-23, 1986 (Science and Technology Series, Volume 71)
The key factor to motivation : Mars through the signs
The Near Planets (Voyage Through the Universe)
The Near Planets (Voyage Through the Universe)
From India to the Planet Mars; A Case of Multiple Personality with Imaginary Languages
Mars : The Story of the Red Planet
Photochemistry of the Atmospheres of Mars and Venus (Physics and Chemistry in Space, Vol. 13)
First on Mars (Science Fiction Rediscovery, No 18)
Case for Mars IV (Science and Technology Vol. 89)
Strategies for Mars Exploration (Science and Technology Series (Paper), Vol 86)
Strategies for Mars Exploration (Science and Technology Series (Cloth), Vol 86)
Az embert a Marson terveztâek? Fèoldes Attila
Planetary Dreams : The Quest to Discover Life Beyond Earth