| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Postglacial Vegetation of Canada | 978-0-521-54409-2 (0-521-54409-2) | 2008 |
| Post-glacial Vegetation of Canada | 978-0-521-30868-7 (0-521-30868-2) | 1987 |
C.R. · C. Ritchie · J C · J R · J. Ritchie · John C. Ritchie · John C. Ritchie Jr.