W.P. · William D. Popkin · William P.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Evolution of the Judicial Opinion: Institutional and Individual Styles | 978-0-8147-6726-9 (0-8147-6726-5) | 2007 |
| Materials on Legislation, Political Language and the Political Process | 978-1-59941-394-5 (1-59941-394-9) | 2009 |