In order of appearance
- [Nimitz-class Aircraft Carrier] Ramsaran, Eva-Marie. USS Nimitz is Underway. 2012, color photo. U.S. Navy. Available from: Flickr, http://www.flickr.com/photos/usnavy/7630262240/ (accessed March 13, 2013).
- [LP Record] Henry, Libby. “Columbia LP record.” March 22, 2013.
- [Ferris Wheel] Lewis, Starks W. World’s Columbian Exposition: Ferris Wheel, Chicago, United States, 1893. Brooklyn Museum Archives. Goodyear Archival Collection. http://www.brooklynmuseum.org/opencollection/archives/goodyear_archival_collection/image/4411/image (accessed March 12, 2013). Public Domain.
- [M16] Roth, Eric. Forrest Gump. VHS. Directed by Robert Zemeckis. Paramount Pictures, 1994. Posted by Kenny99 as “800px-FG-M16-1.”Internet Movie Firearms Database – Guns in Movies, TV and Video Games. http://www.imfdb.org/wiki/File:FG-M16-1.jpg (accessed March 26, 2013).
- [Fusion Camera System] — Connors, Devin. “Pace Fusion Camera System 3D.” Camera Tech: 2010 Oscars. http://www.tomsguide.com/us/Oscars-Avatar-Cameras,review-1518.html (accessed March 24, 2013).
- [Credit card] — “Robert McNamara, Cardmember 1000.” November 15, 2012. Video clip posted by YouTube user DinersClub. www.YouTube.com, https://www.youtube.com/watch?v=UeaSxdRBMWI. Accessed March 20, 2013.
- [Barbie] Moore, Kasey. “Bratz, Barbie, and Monster High.” Fredericksburg, Va., March 23, 2013. Available from: http://www.flickr.com/photos/kasmoore/8585777535/in/photostream (accessed March 24, 2013).
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[AC Generator] “First Electric Generator in Louisville, 1883, for Southern Exposition.” Filson Historical Society. August 27, 2012. l http://filsonhistorical.org/2012/08/27/attention-designers-southern-exposition-material-at-the-filson/ (accessed March 27, 2013).