Hammond, J. L., & Hammond, B. (1939). Lord Shaftesbury. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Hammond, J. L., agus Barbara Hammond. Lord Shaftesbury. Harmondsworth: Penguin Books, 1939.
Lua MLA (8ú heag.)Hammond, J. L., agus Barbara Hammond. Lord Shaftesbury. Penguin Books, 1939.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.