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"150 Years of IU (Optical Track, Transfer)" [Motion picture]. (June 21, 1993). Retrieved from http://americanarchive.org/catalog/cpb-aacip_160-87pnw6kh

""150 Years of IU (Optical Track, Transfer)"." Motion picture. June 21, 1993. Digital Commonwealth, http://americanarchive.org/catalog/cpb-aacip_160-87pnw6kh (accessed May 16, 2022).