ISBN-13: 9781780393193 / Angielski / Miękka / 2011 / 54 str.
ISBN-13: 9781780393193 / Angielski / Miękka / 2011 / 54 str.
First published in 1999 as volume 14 in the NASA "Monograph in Aerospace History" series. This study contains photographs and illustrations.