Frayn, M., & Burke, D. (2001). The Copenhagen papers: An intrigue (1st American ed.). Metropolitan Books.
Lua i Stíl Chicago (17ú heag.)Frayn, Michael, agus David Burke. The Copenhagen Papers: An Intrigue. 1st American ed. New York: Metropolitan Books, 2001.
Lua MLA (9ú heag.)Frayn, Michael, agus David Burke. The Copenhagen Papers: An Intrigue. 1st American ed. Metropolitan Books, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.