CREATE TABLE table_30858 ("Pick #" FLOAT, "Player" CLOB, "Position" CLOB, "Nationality" CLOB, "NHL team" CLOB, "College/junior/club team" CLOB)

Which college/junior/club team has jim mathieson as the player?
SELECT "College/junior/club team" FROM table_30858 WHERE "Player" = 'Jim Mathieson'
SELECT "College/junior/club team" FROM "table_30858" WHERE "Player" = 'Jim Mathieson'