| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Modern Earth Science | 978-0-03-056533-5 (0-03-056533-2) | 2000 | Robert J. Sager · William L. Ramsey · Clifford R. Phillips |
| Modern Earth Science, Annotated Teacher's Edition | 978-0-03-050657-4 (0-03-050657-3) | 1998 | Robert J Sager · William L Ramsey · Clifford R Phillips |