00377nam a22001337a 450000500170000000800410001702000080005804100080006608200170007410000330009124500710012426000300019530000180022520260731123723.0260731b        |||||||| |||| 00| 0 eng d  a000  aeng  a681.3bSCH/A  aScherr, Allan Lee             aAn Analysis of Time-shared Computer Systemsc/ by Allan lee Scherr  aAmerica bMIT Pressc1967  axxvii, 113p.