| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1994 | 978-1-880028-00-1 | J. Ronald Engel · Julie Denny-Hughes | Advancing Ethics for Living Sustainably: Report of the Iucn Ethics Workshop, April 1993, Indiana Dunes National Lakeshore, U.S.A |
| '' | 978-1-880028-01-8 | Thaddeus C. Trzyna | The California Handbook: A Comprehensive Guide to Sources of Current Information and Action With Selected Background Material (California Informatio) |
| 2007 | 978-1-880028-12-4 | Thaddeus C. Trzyna | Global Urbanization and Protected Areas: Challenges and Opportunities Posed by a Major Factor of Global Change |