| Clue | Source | Date |
|---|---|---|
| Rough-and-ready guidelines | The Times Concise | 20 May 2023 |
| Possibly approximate principles, based on practice | The Times Specialist Sunday | 21 Feb 2021 |
| Approximate guides | The Times Concise | 28 May 2020 |
| Practical guidance for humblest ground hosting United |