TY  - GEN
AU  - Engelbrektson,Sune
AU  - Engelbrektson, Sune.
TI  - Astronomy: through time and space 
SN  - 0697109232
U1  - 520 
PY  - 1994///
CY  - [S.l.]
PB  - Brown (William C.) Co ,U.S.
ER  -