Terry Gifford: The Cambridge Companion to Ted Hughes. Cambridge University Press, 2011, ISBN 978-1-107-49356-8 (google.com [abgerufen am 27. Juli 2021]).
doi.org
Richard Farmer: Cinema advertising and the Sea Witch 'Lost Island' film (1965). In: Historical Journal of Film, Radio and Television. Band36, 2016, S.569–586, doi:10.1080/01439685.2015.1129709.