Wood, D. (1990). Philosophy at the limit (1. publ.). Unwin Hyman.
Lua i Stíl Chicago (17ú heag.)Wood, David. Philosophy at the Limit. 1. publ. London [u.a.]: Unwin Hyman, 1990.
Lua MLA (8ú heag.)Wood, David. Philosophy at the Limit. 1. publ. Unwin Hyman, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.