CREATE TABLE table_name_88 (source VARCHAR2, country VARCHAR2, transfer_fee VARCHAR2)

What was the source of an ENG transfer that paid a 1.5m transfer fee?
SELECT source FROM table_name_88 WHERE country = "eng" AND transfer_fee = "£1.5m"
SELECT "source" FROM "table_name_88" WHERE "country" = "eng" AND "transfer_fee" = "£1.5m"