Home › Authors › Tex.) Symposium on Lunar Bases and Space Activities in the 21st Century (1988 Houston 👤 Tex.) Symposium on Lunar Bases and Space Activities in the 21st Century (1988 Houston 1 book Books by Tex.) Symposium on Lunar Bases and Space Activities in the 21st Century (1988 Houston Papers presented to the Sympos Papers presented to the Symposium on Lunar Bases and Space Activities of the 21st Century, Houston, Texas, April 5-7, 1988 1988