| Value | Description | Notes | Issue number | Modified in Issue |
|---|---|---|---|---|
| N | No, not returnable | 2 | ||
| Y | Yes, returnable, full copies only | 2 | ||
| S | Yes, returnable, stripped cover | Note the product barcode should be repeated (with triangular ‘strippable’ indicator) on cover 2 (inside front cover) to facilitate scanning of returned stripped covers | 2 | 63 |
| C | Conditional | Contact publisher for requirements and/or authorization | 2 |