Revision history for entry Cooper, John M. (1987). "Contemplation and happiness: A reconsideration" [COOCAH]

NB: for privacy reasons, few details are provided in public revision histories.
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2014-04-08T03:46:32updateSystem / admin update -
2013-12-01T21:36:15updateSystem / admin update -
2013-01-12T16:04:27updateSystem / admin update -
2013-01-12T16:04:27updateSystem / admin update -