Marshall, R., & Rosskopf, A. (2001). AGS Earth Science. American Guidance Service inc.
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Chicago Style (17th ed.) Citation
Marshall, Robert, and Allen Rosskopf. AGS Earth Science. Minnesota: American Guidance Service inc, 2001.
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MLA引文
Marshall, Robert, and Allen Rosskopf. AGS Earth Science. American Guidance Service inc, 2001.
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警告：這些引文格式不一定是100％准確.