Revision history for entry Regan, Tom; Singer, Peter (1989). "Animal Rights and Human Obligations" [REGARA]

NB: for privacy reasons, few details are provided in public revision histories.
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2015-03-19T18:07:22updateSystem / admin update -
2015-02-13T22:27:52updateSystem / admin update -
2015-02-04T20:17:35updateSystem / admin update -