MORGAN, Rice. Return (The Invasion Chronicles-Book Four): A Science Fiction Thriller. Lukeman Literary, 2019. ISBN 9781640296280. Dostupné také z: https://www.bookport.cz/AccountSaml/SignIn/?idp=https://shibboleth.utb.cz/idp/shibboleth&returnUrl=/kniha/return-the-invasion-chronicles-book-four-a-science-fiction-thriller-10048/.