APA (7th ed.) Citation

Hoyt, E. (2001). Creatures of the deep: In search of the sea's monsters and the world they live in. Firefly books.

Chicago Style (17th ed.) Citation

Hoyt, Erich. Creatures of the Deep: In Search of the Sea's Monsters and the World They Live in. Canada: Firefly books, 2001.

MLA (9th ed.) Citation

Hoyt, Erich. Creatures of the Deep: In Search of the Sea's Monsters and the World They Live in. Firefly books, 2001.