000			00455pam a2200169a 44500
008			160408b1974 xxu||||| |||| 00| 0 eng d
082			_a514 _bC462
100			_aChristensen, J. P. R.
245	1		_aTOPOLOGY AND BOREL STRUCTURE
260			_aAmsterdam _bNorth Holland Pub. _c1974
300			_a133
440			_aNorth Holland Mathematics Studies, 10 _v
500			_aRef. : P. 131-133
650			_aTopology
964			_gCIRC
997			_aA31401 C
999			_c257217 _d257217