Wicander, R. (2021). Geology: Earth in perspective (Third edition.). Cengage Learning, Inc.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWicander, Reed. Geology: Earth in Perspective. Third edition. Boston: Cengage Learning, Inc, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रWicander, Reed. Geology: Earth in Perspective. Third edition. Cengage Learning, Inc, 2021.
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