Useless machine (English Wikipedia)

Seedman, Michael. "(Homepage)". Leave Me Alone Box. LeaveMeAloneBox. Archived from the original on 16 March 2013. Retrieved 14 March 2013.
Seedman, Michael. "What Others Have Done". Leave Me Alone Box. LeaveMeAloneBox. Archived from the original on 30 August 2013. Retrieved 14 March 2013.

amazon.com

"[search results: "useless machine kit"]". Amazon. Amazon.com. Retrieved 2015-03-11.

"Little Black Box". Grand Illusions. Archived from the original on 29 January 2013. Retrieved 14 March 2013.

Fiessler, Andreas. "Useless Machine Advanced Edition". Retrieved 20 October 2015.

"About". Liberty: The Stories Never Die!. Liberty Library Corporation. 2012. Archived from the original on 15 April 2013. Retrieved 14 March 2013.

Cancilla, Sam. "Little Black Box". Sam's Toybox. Sam Cancilla. Retrieved 15 March 2013.

Whitehill, Bruce (21 July 2011). "Bettye-B". The Big Game Hunter. Retrieved 14 March 2013.

Reiselman, Deborah (2012). "Alum Don Poynter gains novelty reputation on campus and off". UC Magazine. University of Cincinnati. Retrieved 15 March 2013.

Seedman, Michael. "(Homepage)". Leave Me Alone Box. LeaveMeAloneBox. Archived from the original on 16 March 2013. Retrieved 14 March 2013.
"Little Black Box". Grand Illusions. Archived from the original on 29 January 2013. Retrieved 14 March 2013.
"About". Liberty: The Stories Never Die!. Liberty Library Corporation. 2012. Archived from the original on 15 April 2013. Retrieved 14 March 2013.
Seedman, Michael. "What Others Have Done". Leave Me Alone Box. LeaveMeAloneBox. Archived from the original on 30 August 2013. Retrieved 14 March 2013.

Pesta, Abigail (12 March 2013). "Looking for Something Useful to Do With Your Time? Don't Try This". Wall Street Journal. p. 1. Retrieved 17 July 2017.