Hackett Steven C Environmental and natural resources economics Theory ,policy,and the sustainable society. - 3 - New Delhi Refrence press 2009 - 524p cm. ISBN: 1550 Standard No.: 105326 Source: 534, 19/01/2010, Pioneer Book Distributors Textual Subjects--Topical Terms: Buisness Economics Dewey Class. No.: X:(G:55), P9