Challenge to Apollo: the Soviet Union and the space race, 1945-1975 - Asif A. Siddiqui; NASA, Washington, DC, 2000, 1011pp., 79
Space policy ; 18 , 1 ; 75-76
2002
Article (Journal)
Unknown
The Soviet space race with Apollo
SLUB | 2003
|NASA Facts: Manned Space Flight: Apollo
NTIS | 1965