Turner, Wendell. "Comparing Map Projections - A Remix of OER USGS Science Lesson Plans". OER Commons. Institute for the Study of Knowledge Management in Education, 15 Jul. 2019. Web. 22 Nov. 2024. <https://goopenva.org/authoring/73-comparing-map-projections-a-remix-of-oer-usgs-scie>.
Turner, W. (2019, July 15). Comparing Map Projections - A Remix of OER USGS Science Lesson Plans. OER Commons. Retrieved November 22, 2024, from https://goopenva.org/authoring/73-comparing-map-projections-a-remix-of-oer-usgs-scie.