TY  - BOOK
ED  - United States.
TI  - How for a star: a supplement in space ariented cancepts for science and mathematics curricula for intermediate grades 
U1  -  629.1300973 
PY  - 1969///
CY  - [S.l.
PB  - U.S. Committee on Space Science Airented Mathematics
KW  - Aerospace engineering
KW  - United States
KW  - Aeronautics
ER  -