-. Space handbook: Astronautics and its application. Government Printing Office.
Dyfyniad Arddull Chicago-. Space Handbook: Astronautics and Its Application. Government Printing Office.
Dyfyniad MLA-. Space Handbook: Astronautics and Its Application. Government Printing Office.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.