CREATE TABLE table_68661 ("Member" TEXT, "Party" TEXT, "Electorate" TEXT, "State" TEXT, "Term in office" TEXT)

Which state has a Term in office of 1984 1996, a Party of labor, and a Member of robert tickner?
SELECT "State" FROM table_68661 WHERE "Term in office" = '1984–1996' AND "Party" = 'labor' AND "Member" = 'robert tickner'
SELECT "State" FROM "table_68661" WHERE "Member" = 'robert tickner' AND "Party" = 'labor' AND "Term in office" = '1984–1996'