000			00359nam a2200157Ia 4500
008			200518s9999 xx 000 0 und d
020			_a9788126554270
082			_a 005.43 GAG-O9
100			_a Gagne
245			_a Operating System Concepts
250			_a9
260			_b Indian edition
300			_a556
650			_a Operating system
942			_cBK
999			_c53238 _d53238