Rosen, Zack. "David Pieczkiewicz, Ph.D.". OER Commons. Institute for the Study of Knowledge Management in Education, 01 Aug. 2016. Web. 06 May 2024. <https://oercommons.org/authoring/15300-david-pieczkiewicz-ph-d>.
Rosen, Z. (2016, August 01). David Pieczkiewicz, Ph.D.. OER Commons. Retrieved May 06, 2024, from https://oercommons.org/authoring/15300-david-pieczkiewicz-ph-d.