Farb, P. (1962). Living earth. Pyramid Publishing.
Lua i Stíl Chicago (17ú heag.)Farb, Peter. Living Earth. New York: Pyramid Publishing, 1962.
Lua MLA (9ú heag.)Farb, Peter. Living Earth. Pyramid Publishing, 1962.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.