Winterbotham, H. S. L. (1939). A key to maps: By H.S.L. Winterbotham (2nd ed.). Blackie.
芝加哥风格引文Winterbotham, H. S. L. A Key to Maps: By H.S.L. Winterbotham. 2nd ed. London: Blackie, 1939.
MLA引文Winterbotham, H. S. L. A Key to Maps: By H.S.L. Winterbotham. 2nd ed. Blackie, 1939.
警告：这些引文格式不一定是100％准确.