00357nam a2200157Ia 4500 Betts /R.J Economics BK Buisness Economics For Engineers Buisness Economics For Engineers McGraw Hill London 1980 338.7 Bet 246 ENGLISH 30907 30907 0 0 0 0 AFT CRCE CRCE 1483 | 13 2023-03-17 0 338.7 Bet AFT3893 2023-03-17 2023-03-17 BK