Betzner, Jason. "Comparing Map Projections - A Remix of OER USGS Science Lesson Plans". OER Commons. Institute for the Study of Knowledge Management in Education, 20 Oct. 2022. Web. 27 Dec. 2024. <https://goopenva.org/authoring/916-comparing-map-projections-a-remix-of-oer-usgs-scie>.
Betzner, J. (2022, October 20). Comparing Map Projections - A Remix of OER USGS Science Lesson Plans. OER Commons. Retrieved December 27, 2024, from https://goopenva.org/authoring/916-comparing-map-projections-a-remix-of-oer-usgs-scie.