000 00258nam a22001217a 4500
020 _a0584700024
082 _aR.925.2
_bB.D.S./AST
100 _aDAVID ABBOTT
245 _aASTRONOMERS
250 _a1ST
260 _bBLOND EDUCATIONAL
_c1984
942 _2ddc
_cREF
999 _c3550
_d3550