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Paul Hawken
by Paul Hawken by L. Hunter Lovins by Amory Lovins

See also:

Paul; Lovins, Amory; Lovins, L. Hunter Hawken
by L. Hunter Lovins,by Amory Lovins,by Paul Hawken
Lovins, L. Hunter; Lovins, Amory; Hawken, Paul
HAWKEN, PAUL with Amory Lovins and L. Hunter Lovins