W.W. · W. Walker · William O. Walker · William Walker
Pennsylvania State University Press · SR Books
| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Drug Control Policy: Essays in Historical & Comparative Perspective | 978-0-271-02560-5 (0-271-02560-3) | 1992 |
| Drugs in the Western Hemisphere: An Odyssey of Cultures in Conflict | 978-0-8420-2422-8 (0-8420-2422-0) | 1996 |