Twain, M., & Day, A. G. (1967). Mark Twain's letters from Hawaii. Chatto & Windus.
芝加哥风格引文Twain, Mark, 与 A. Grove Day. Mark Twain's Letters from Hawaii. London: Chatto & Windus, 1967.
MLA引文Twain, Mark, 与 A. Grove Day. Mark Twain's Letters from Hawaii. Chatto & Windus, 1967.
警告：这些引文格式不一定是100％准确.