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2013 Boyer Lecture - David Orr

duration 1 hour 7 minutes

2013 Boyer Lecture - David Orr

2013 Boyer Lecture - David Orr

2013 Boyer Lecture - David Orr

Lecture at 2013 All College by Dr. David Orr

formal sciences
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From  Sadie Ross June 5th, 2015 136 plays 0