00415nam a2200145 a 4500020002700000020003000027082001500057100002000072245003900092250001200131260003800143300001100181520002800192650004900220  a0672218232 (paperback)  a9780672218231 (paperback)  a001.54 HEL1 aHelms, Harry L.10aComputer language Reference Guide   a2nd ed.  bSams Technical Publishing,c1984.  a192 p.  aBook by Helms, Harry L.  aProgramming languages (Electronic computers)