00452nam a22001457a 4500008004100000020001800041040005500059080002000114100002200134245003900156260004800195300001600243650002200259653002500281230328b        |||||||| |||| 00| 0 eng d  a0-471-32100-1  aNational Science LibrarycNational Science Library  aD 681.32.06bL5  aGraham, Robert M   aPrinciples of systems programming   aNew York: bJohn Wiley & Sons, Inc., c1975  axiv, 422p.   aComputer science   aSystems programming