Space settlements :
a design study /
edited by Richard D. Johnson, Charles Holbrow.

APA Citation

Holbrow, C. H., Johnson, R. D., American Society for Engineering Education., United States. National Aeronautics and Space Administration. (1977). Space settlements: a design study. Washington: Scientific and Technical Information Office, National Aeronautics and Space Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off..

MLA Citation

Holbrow, Charles H, Richard D Johnson, American Society for Engineering Education, and United States. National Aeronautics and Space Administration. Space Settlements: a Design Study. Washington: Scientific and Technical Information Office, National Aeronautics and Space Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1977.