Humphrey, E. (1975). Encyclopedia International: V.6.: Diatom - Explosion. Grolier Inc.
Lua i Stíl Chicago (17ú heag.)Humphrey, Edward. Encyclopedia International: V.6.: Diatom - Explosion. Grolier Inc, 1975.
Lua MLA (8ú heag.)Humphrey, Edward. Encyclopedia International: V.6.: Diatom - Explosion. Grolier Inc, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.