How to draw various landforms, from "Principles of Cartography" (1962) by Hungarian artist & cartographer Erwin Josephus Raisz (1893–1968) ✏ pic.twitter.com/tkYnkQSxl2
— History_of_Geology (@Geology_History) September 26, 2019
via Twitter https://twitter.com/Geology_History
September 26, 2019 at 04:01PM
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