| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Malthusian Moment: Global Population Growth and the Birth of American Environmentalism | 978-O-8135-5272-9 (O-8135-5272-9) | 2012 |
P R · P. Robertson · P T · P. Thomas · T. R. · T. Robertson · Thomas R. · Thomas Robertson