ebrary, Inc, & Sack, R. D. (2002). Progress: Geographical essays. Johns Hopkins University Press.
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Chicago Style (17th ed.) Citation
ebrary, Inc, and Robert David Sack. Progress: Geographical Essays. Baltimore: Johns Hopkins University Press, 2002.
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MLA引文
ebrary, Inc, and Robert David Sack. Progress: Geographical Essays. Johns Hopkins University Press, 2002.
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警告：這些引文格式不一定是100％准確.