CREATE TABLE table_name_5 (games INT, debut_year VARCHAR, years_at_club VARCHAR, goals VARCHAR)

Which Games have Years at club of 1977, and Goals of 17, and a Debut year smaller than 1977?
SELECT AVG(games) FROM table_name_5 WHERE years_at_club = "1977" AND goals = 17 AND debut_year < 1977
SELECT AVG("games") FROM "table_name_5" WHERE "1977" = "years_at_club" AND "debut_year" < 1977 AND "goals" = 17