CREATE TABLE table_name_42 (wins INT, class VARCHAR, year VARCHAR)

Name the Wins which has a Class of 350cc, and a Year smaller than 1973?
SELECT SUM(wins) FROM table_name_42 WHERE class = "350cc" AND year < 1973
SELECT SUM("wins") FROM "table_name_42" WHERE "350cc" = "class" AND "year" < 1973