| Titel | ISBN-13 (ISBN-10) | Erscheinungsjahr | |
|---|---|---|---|
| The Study of Trace Fossils: "A Synthesis Of Principles, Problems, And Procedures In Ichnology" | 978-3-642-65925-6 (3-642-65925-X) | 2013 | |
| The Study of Trace Fossils.: A Synthesis of Principles, Problems, and Procedures in Ichnology. | 978-0-387-90444-3 (0-387-90444-1) | 1983 | |
| The Study of Trace Fossils: A Synthesis of Principles, Problems, and Procedures in Ichnology | 978-3-540-06870-9 (3-540-06870-8) | 1975 |
R. F. · R. Frey · Robert W Frey · W F · W. Frey