TY  - BOOK
AU  - Ley, Willy
AU  - 
TI  - Rockets, Missiles an men in Space
U1  - 629.19 
PY  - 1969///
CY  - New York
PB  - New American Library
KW  - Rockets, Missiles
N1  -  Bibliog on p. 637-656
ER  -