Keller David R Ed. Environmental ethics The big questions. Keller David R Ed. - Chichester Wiley-Blackwell 2010 - xvii,581p. cm. ISBN: 2588.6945000000001 Standard No.: 109363 Source: 121, 21/09/2010, Pioneer Book Distributors Textual Subjects--Topical Terms: Philosophy Dewey Class. No.: R4:(G:55), Q0