Heffernan, John . "True stories of Valley Forge". OER Commons. Institute for the Study of Knowledge Management in Education, 07 Mar. 2016. Web. 23 Nov. 2024. <https://oercommons.org/authoring/12617-true-stories-of-valley-forge>.
Heffernan, J. (2016, March 07). True stories of Valley Forge. OER Commons. Retrieved November 23, 2024, from https://oercommons.org/authoring/12617-true-stories-of-valley-forge.