<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> MAR-31-1997 <CASH> 23,208,378 <SECURITIES> 0 <RECEIVABLES> 39,202,805 <ALLOWANCES> 3,812,000 <INVENTORY> 7,415,551 <CURRENT-ASSETS> 69,108,267 <PP&E> 18,837,534 <DEPRECIATION> 12,832,460 <TOTAL-ASSETS> 89,568,489 <CURRENT-LIABILITIES> 9,579,878 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 80,902 <OTHER-SE> 76,677,065 <TOTAL-LIABILITY-AND-EQUITY> 89,568,489 <SALES> 0 <TOTAL-REVENUES> 41,414,490 <CGS> 35,271,313 <TOTAL-COSTS> 38,778,351 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 3,117,363 <INCOME-TAX> 1,265,000 <INCOME-CONTINUING> 1,852,363 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,852,363 <EPS-PRIMARY> 0.23 <EPS-DILUTED> 0.23