Gaya APA
Northcott, M, S. (2007).
A moral climate: The ethics of global warming. Foreword by John Houghton. .
London:
London Darton.
Gaya MLA
Northcott, Michael, S..
"A moral climate: The ethics of global warming. Foreword by John Houghton. ".
London:
London Darton,
2007.
Buku.