Johnson, R. L. (1979). Effects of various levels of fatigue on the speed and accuracy of visual recognition. [publisher not identified].
Chicago Style (17th ed.) CitationJohnson, Robert Lewis. Effects of Various Levels of Fatigue on the Speed and Accuracy of Visual Recognition. [Place of publication not identified]: [publisher not identified], 1979.
MLA (9th ed.) CitationJohnson, Robert Lewis. Effects of Various Levels of Fatigue on the Speed and Accuracy of Visual Recognition. [publisher not identified], 1979.
Warning: These citations may not always be 100% accurate.