ماخذ: Trouble in Mind Sheet Music by Richard M. Jones. Trouble in mind, I'm blue. Richard M. Jones. English. Solero.
ترجمه: هال لئونارد، جهانی. انگلیسی. 0-7579-0169-7. سرب جدول. But I won't be blue always, for the sun will shine in my back door someday.