ARMENT, Chad (2004). Cryptozoology - Science & Speculation. Coachwhip Pubblications (Landsville, Pennsylvania).

HEUVELMANS, Bernard (2007). The natural history of hidden animals. Kegan Paul (London & New York).

HEUVELMANS, Bernard (1982). What is cryptozoology? Interdisciplinary Journal of the International Society of Cryptozoology.
Vol. 1 - Winter 1982.BINNS, Ronald (1983), The Loch Ness mystery solved.

CAMPBELL, S. (1996), The Loch Ness monster - the evidence.

MACKAL, P. Roy (1976), The monsters of Loch Ness.

SHINE, Adrian (2006), Loch Ness.

WITCHELL, Nicholas (1979), The Loch Ness Story

Binns, R. The Loch Ness Mystery Solved (Prometheus Books, 1984).

Campbell, S., The Loch Ness Monster: The Evidence (Prometheus Books, 1997).

Polidoro, M. "Il mostro di Loch Ness", in: Misteri (Varese: Eco, 1996), pp. 93-114.