000 00273pam a2200121a 44500
010 _a6414267.
082 _a523
_bW97P
100 _aWyatt Stanley P.
245 1 _aPRINCIPLES OF ASTRONOMY
260 _a
_bAllyn And Bacon Inc.
_c1964
964 _gCIRC
997 _a58405 C
999 _c407934
_d407934