<ARTICLE> 5
       
                                                  
<PERIOD-TYPE>                   9-MOS                   9-MOS
<FISCAL-YEAR-END>                          NOV-30-1998             NOV-30-1997
<PERIOD-END>                               AUG-31-1998             AUG-31-1997
<CASH>                                          10,149                  22,502
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<ALLOWANCES>                                         0                       0
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<CURRENT-ASSETS>                               284,271                 256,401
<PP&E>                                         160,773                 126,430
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<CURRENT-LIABILITIES>                          107,448                  94,240
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<COMMON>                                        13,007                  12,944
<OTHER-SE>                                           0                       0
<TOTAL-LIABILITY-AND-EQUITY>                   507,448                 447,019
<SALES>                                        395,207                 386,109
<TOTAL-REVENUES>                               395,207                 386,109
<CGS>                                          296,537                 284,728
<TOTAL-COSTS>                                        0                       0
<OTHER-EXPENSES>                                80,920                  80,107
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<INTEREST-EXPENSE>                              11,467                   9,141
<INCOME-PRETAX>                                 14,966                  20,397
<INCOME-TAX>                                     5,238                   7,139
<INCOME-CONTINUING>                              9,728                  13,258
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<CHANGES>                                            0                       0
<NET-INCOME>                                     9,728                  13,258
<EPS-PRIMARY>                                     2.42                    3.31
<EPS-DILUTED>                                     2.37                    3.25