CREATE TABLE table_name_17 (producer VARCHAR, author VARCHAR, narrator VARCHAR, year VARCHAR)

who is the producer when the narrator is katherine kellgren, the year is before 2013 and the author is karen cushman?
SELECT producer FROM table_name_17 WHERE narrator = "katherine kellgren" AND year < 2013 AND author = "karen cushman"
SELECT "producer" FROM "table_name_17" WHERE "author" = "karen cushman" AND "katherine kellgren" = "narrator" AND "year" < 2013