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Bloomfield, Robert, Hales, Jeffrey. (). Experimental investigation of the positive and negative effects of mutual observation . : .

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Bloomfield, Robert, Hales, Jeffrey. Experimental investigation of the positive and negative effects of mutual observation. : , . Text.

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Bloomfield, Robert, Hales, Jeffrey. Experimental investigation of the positive and negative effects of mutual observation. : , . Text.

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Bloomfield, Robert, Hales, Jeffrey. Experimental investigation of the positive and negative effects of mutual observation. : , . Print.