ISBN-13: 9781780393230 / Angielski / Miękka / 2011 / 84 str.
ISBN-13: 9781780393230 / Angielski / Miękka / 2011 / 84 str.
First published in 1997 as volume 6 in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.