| 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
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| 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
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| 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
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| 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
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| 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
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