Ruger, Henry Alford 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
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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
9781018793450
Ruger, Henry Alford
1018793453
Böcker och tidskrifter