Ruger, Henry A. The Psychology of Efficiency: An Experimental Study of the Processes Involved in the Solution of Mechanical Puzzles and in the Acquisition of Skill in their Manipulation. New York: The Science Press, 1910.
Reference
- Object[6]
- no[6]
- historic[6]
- puzzle[6]
- reproduction[2]
- france[2]
- germany[2]
- new york[2]
- new york city[2]
- new york county[2]
- nuremburg[2]
- paris (france)[2]
- united states of america[2]
- 19th century[1]
- modern[1]
- the bowery[1]
1 - 6 of 6 Records
1 - 6 of 6 Records