TY  - BOOK
AU  - Jenkins, Dennis R. 
TI  - The history of developing the national space transportation system: the beginning through STS-50 / 
SN  - 0963397400
U1  - 629.409 
PY  - 1992///]
CY  - Missouri : 
PB  - Walsworth Publishing, 
KW  - Extravehicular activity (Space flight)
KW  - Navigation (Astraunotics)
KW  - Space flight
ER  -