TY  - BOOK
AU  - Vorob`Ev,L M
TI  - SPACECRAFT NAVIGATION
U1  - NASA 
PY  - 0000///
CY  - 
PB  - Nasa, Washington, D.C.
N1  - Bound With Nasa Tt F-339-40,347 Lack No.341-43,345-46
ER  -