Hoyt, E. (2001). Creatures of the deep: In search of the sea's monsters and the world they live in. Firefly books.
Chicago-referens (17:e uppl.)Hoyt, Erich. Creatures of the Deep: In Search of the Sea's Monsters and the World They Live in. Canada: Firefly books, 2001.
MLA-referens (9:e uppl.)Hoyt, Erich. Creatures of the Deep: In Search of the Sea's Monsters and the World They Live in. Firefly books, 2001.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.