(1979). Passage to space: The shuttle transportation system / Charles Coombs.
Chicago-čujuhus (17. p.)Passage to Space: The Shuttle Transportation System / Charles Coombs. 1979.
MLA-čujuhus (9. p.)Passage to Space: The Shuttle Transportation System / Charles Coombs. 1979.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.