Copyright Paperback Collection (Library of Congress), Fox, E., Frost, J., Maxwell, C., Nash, S., & Warren, T. A. (2009). Four dukes and a devil. Avon Books.
Lua i Stíl Chicago (17ú heag.)Copyright Paperback Collection (Library of Congress), Elaine Fox, Jeaniene Frost, Cathy Maxwell, Sophia Nash, agus Tracy Anne Warren. Four Dukes and a Devil. New York: Avon Books, 2009.
Lua MLA (8ú heag.)Copyright Paperback Collection (Library of Congress), et al. Four Dukes and a Devil. Avon Books, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.