Unwin, T. (1992). The place of geography. Longman Scientific & Technical ; Wiley.
芝加哥风格引文Unwin, Tim. The Place of Geography. Harlow, Essex, England : New York: Longman Scientific & Technical ; Wiley, 1992.
MLA引文Unwin, Tim. The Place of Geography. Longman Scientific & Technical ; Wiley, 1992.
警告：这些引文格式不一定是100％准确.