000			00448pam a2200157a 44500
008			160408b1971 xxu||||| |||| 00| 0 eng d
082			_a651.8 _bB278
100			_aBarron, D. W.
245	1		_aCOMPUTER OPERATING SYSTEMS
260			_aLondon _bChapman And Hall _c1971
300			_a135
650			_aProgramming Languages (Electronic Computers)
650			_aElectronic Digital Computers -- Programming
964			_gCIRC
997			_aA18085 C
999			_c268302 _d268302