Greenberg, I., & Greenberg, J. (1981). Sharks: And other dangerous sea creatures. Miami, FL : Seahawk Press.
Lua i Stíl Chicago (17ú heag.)Greenberg, Idaz, agus Jerry Greenberg. Sharks: And Other Dangerous Sea Creatures. Miami, FL : Seahawk Press, 1981.
Lua MLA (9ú heag.)Greenberg, Idaz, agus Jerry Greenberg. Sharks: And Other Dangerous Sea Creatures. Miami, FL : Seahawk Press, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.