| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Wssa Abstracts: 1986 Meeting of the Weed Science Society of America, February 5-7, 1986 | 978-99971-44-61-4 (99971-44-61-9) | 1986 |
| Wssa Abstracts: 1987 Meeting of the Weed Science Society of America, February 3-5, 1987 | 978-99971-44-67-6 (99971-44-67-8) | 1987 |