Discover Magazine & Hoffman, P. (1994). Planet earth our home [videorecording]. Sandra Carter Production Inc.
Lua i Stíl Chicago (17ú heag.)Discover Magazine agus Paul Hoffman. Planet Earth Our Home [videorecording]. [San Francisco, CA.]: Sandra Carter Production Inc, 1994.
Lua MLA (9ú heag.)Discover Magazine agus Paul Hoffman. Planet Earth Our Home [videorecording]. Sandra Carter Production Inc, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.