Spies, Jillian. "This is a roof rack". OER Commons. Institute for the Study of Knowledge Management in Education, 29 Nov. 2018. Web. 26 Jun. 2024. <https://oercommons.org/authoring/50168-this-is-a-roof-rack>.
Spies, J. (2018, November 29). This is a roof rack. OER Commons. Retrieved June 26, 2024, from https://oercommons.org/authoring/50168-this-is-a-roof-rack.