00352nam a2200121Ia 4500082002200000100006500022245007300087250000900160260003200169300001900201500000500220700000500225  a658.403bAm512.EE  aAmerican Telephone & Telegraph Co., Construction Plans Deptt  aEngineering economy; a manager's guide to economic decision makingb  a3rd.  aNew YorkbMcGraw-Hillc1977  ax, 516p. Index  a  a