CREATE TABLE table_77534 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Decision" TEXT, "Attendance" FLOAT, "Record" TEXT)

Who was the visiting team at the game when the Canadiens had a record of 30 19 9?
SELECT "Visitor" FROM table_77534 WHERE "Record" = '30–19–9'
SELECT "Visitor" FROM "table_77534" WHERE "Record" = '30–19–9'