CREATE TABLE table_20193855_2 (publisher VARCHAR, book_title VARCHAR)

Who is the publisher of the book titled daughters of an emerald dusk?
SELECT publisher FROM table_20193855_2 WHERE book_title = "Daughters of an Emerald Dusk"
SELECT "publisher" FROM "table_20193855_2" WHERE "Daughters of an Emerald Dusk" = "book_title"