Gavin, C. I. (1969). The fortress (Coronet ed.). Coronet ; Hooder & Stoughton.
芝加哥风格引文Gavin, Catherine Irvine. The Fortress. Coronet ed. London: Coronet ; Hooder & Stoughton, 1969.
MLA引文Gavin, Catherine Irvine. The Fortress. Coronet ed. Coronet ; Hooder & Stoughton, 1969.
警告：这些引文格式不一定是100％准确.