TY  - BOOK
AU  - BESLER,CAROLM
AU  - ENGELBY,ERIC
AU  - DUCHAM,JANE
TI  - ASTRONOMY / 
U1  - 50 
PY  - 1994///
CY  - [S.N] : 
PB  - WM. C. BROWN PUBLISHERS ، 
KW  - ASTRONOMY, SPHERICALAND PRACTL
KW  - ASTROMETRY
KW  - POSITIONAL ASLONOMSY
ER  -