Jersky, Bryan. "L5: The History of Agriculture ". OER Commons. Institute for the Study of Knowledge Management in Education, 03 Feb. 2015. Web. 07 Jul. 2024. <https://oercommons.org/authoring/6908-l5-the-history-of-agriculture>.
Jersky, B. (2015, February 03). L5: The History of Agriculture . OER Commons. Retrieved July 07, 2024, from https://oercommons.org/authoring/6908-l5-the-history-of-agriculture.