Spikol, A. (1989). The physalia incident. Penguin Books.
Lua i Stíl Chicago (17ú heag.)Spikol, Art. The Physalia Incident. New York: Penguin Books, 1989.
Lua MLA (9ú heag.)Spikol, Art. The Physalia Incident. Penguin Books, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.