0000950137-99-000327 SC 13G 1 19990317 ALTERNATIVE RESOURCES CORP 0000920521 7363 382791069 DE 1231 SC 13G 34 005-43491 99566621 100 TRI STATE INTERNATIONAL STE 300 LINCOLNSHIRE IL 60069 8473171000 75 TRI STATE INTERNATIONAL STE 100 LINCOLNSHIRE IL 60069 BLAIR WILLIAM & CO/IL 0000902367 0000 362214610 IL 1231 SC 13G 222 WEST ADAMS ST 34TH FLOOR CHICAGO IL 60606-5312 3122361600 222 WEST ADAMS CHICAGO IL 60606 SC 13G 1 000095013799000327-001-seq1-sc-13g.txt SCHEDULE 13G