Petersen, C. C., & Brandt, C. (1988). Hubble Vision: Further adventures with the hubble space Telescope by (2nd edition.). Cambridge University Press.
Dyfyniad Arddull ChicagoPetersen, Carolyn Collins, and C.John Brandt. Hubble Vision: Further Adventures with the Hubble Space Telescope by. 2nd edition. Cambridge: Cambridge University Press, 1988.
Dyfyniad MLAPetersen, Carolyn Collins, and C.John Brandt. Hubble Vision: Further Adventures with the Hubble Space Telescope by. 2nd edition. Cambridge University Press, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.