000 00259pam a2200121a 44500
082 _a523
_bB17A8
100 _aBaker, Robert
245 1 _aASTRONOMY
250 _a8
260 _a
_bD. Van Nostrand Company, Inc.
_c1964
964 _gCIRC
997 _a33641 C
999 _c408286
_d408286