APA (7th ed.) Citation

Howe, A. (2006). Powys checklist & readers' guide (3rd ed.). Powys Society.

Chicago Style (17th ed.) Citation

Howe, Alan. Powys Checklist & Readers' Guide. 3rd ed. Bath: Powys Society, 2006.

MLA (9th ed.) Citation

Howe, Alan. Powys Checklist & Readers' Guide. 3rd ed. Powys Society, 2006.

Warning: These citations may not always be 100% accurate.