Revision history for entry Lo, Y. S. (2001). "The land ethic and Callicott's ethical system (1980-2001): An overview and critique" [LOTLE]

NB: for privacy reasons, few details are provided in public revision histories.
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2014-03-19T19:20:02updateSystem / admin update -
2011-10-18T23:51:38updateSystem / admin update -
2010-09-09T16:34:07updateSystem / admin update -