CREATE TABLE table_52561 ("Region" CLOB, "Date" CLOB, "Label" CLOB, "Format" CLOB, "Catalog" CLOB)

What label released a CD in 1988?
SELECT "Label" FROM table_52561 WHERE "Date" = '1988' AND "Format" = 'cd'
SELECT "Label" FROM "table_52561" WHERE "Date" = '1988' AND "Format" = 'cd'