Reluctant Baseball Owners Approve Pact With Players
Baseball club owners drastically reverse position and reluctantly ratify revolutionary agreement that assures first labor peace in major league baseball in four years; move paves way for interleague play, assessments on payrolls commonly known as luxury tax, unprecedented level of revenue sharing between rich and poor clubs and search for commissioner; vote ends destructive period of labor turmoil in which baseball operated without commissioner, players strike affected two seasons, World Series was cancelled and attendance and games stature fell off sharply; terms of agreement discussed (M)