| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Geography: the study of location, culture, and environment | 978-0-07-035309-1 (0-07-035309-3) | 1974 |
| Human geography: spatial design in world society | 978-0-07-035327-5 (0-07-035327-1) | 1974 |
| Physical geography: Environment and man | 978-0-07-035290-2 (0-07-035290-9) | 1975 |