1.
 |  | Title: Ethics of Environment and Development: Global Challenge, International Response by J. Ronald Engel, Joan Gibb Engel ISBN: 0816512639 Publisher: University of Arizona Press Pub. Date: 01 July, 1991 List Price: $19.95 Amazon.com Price: $19.95 |
2.
 |  | Title: Ethics of environment and development: Global challenge, international response by J. Ronald Engel, Joan G. Engel, International Union for Conservation Of ISBN: 0816511837 Publisher: University of Arizona Press Pub. Date: 1990 List Price: $35.00 Amazon.com Price: $35.00 |
3.
 |  | Title: Sacred Sands: The Struggle for Community in the Indiana Dunes by J. Ronald Engel ISBN: 0819550736 Publisher: Univ Pr of New England Pub. Date: 01 January, 1983 List Price: $40.00 Amazon.com Price: $40.00 |
4.
 |  | Title: Advancing Ethics for Living Sustainably: Report of the Iucn Ethics Workshop, April 1993, Indiana Dunes National Lakeshore, U.S.A by J. Ronald Engel, Julie Denny-Hughes ISBN: 188002800X Publisher: Environment and Public Policy Pub. Date: 01 March, 1994 List Price: $15.00 Amazon.com Price: $15.00 |
5.
 |  | Title: Ecology, Justice, and Christian Faith : A Critical Guide to the Literature (Bibliographies and Indexes in Religious Studies) by Peter W. Bakken, Joan Gibb Engel, J. Ronald Engel ISBN: 0313290733 Publisher: Greenwood Press Pub. Date: 30 November, 1995 List Price: $70.95 Amazon.com Price: $70.95 |