CREATE TABLE table_19601 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT, "Production Code" FLOAT, "U.S. viewers  ( millions ) " TEXT)

Name the written by for 16.32 million viewers
SELECT "Written by" FROM table_19601 WHERE "U.S. viewers (millions)" = '16.32'
SELECT "Written by" FROM "table_19601" WHERE "U.S. viewers (millions)" = '16.32'