A condensed version of 'Dans le sillage des monstres marins: Le kraken et le poulpe colossal'. Paris: Plon, 1958.
Originally published as 'Le Grand serpent-de-mer'. Paris: Plon, 1965.
In the wake of the sea-serpents by Bernard Heuvelmans. ISBN 0246643129. Published by Hart-Davis in 1968. Publication and catalogue information, links to buy online and reader comments.