Williamson, M. (2001). The Cambridge dictionary of space technology. Cambridge University Press.
Dyfyniad Arddull ChicagoWilliamson, Mark. The Cambridge Dictionary of Space Technology. Cambridge, U.K: Cambridge University Press, 2001.
Dyfyniad MLAWilliamson, Mark. The Cambridge Dictionary of Space Technology. Cambridge University Press, 2001.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.