APA-referens (7:e uppl.)

CHRISTIE, A. (2016). AT BERTRAM'S HOTEL. HARPERCOLLINS PUBLISHERS.

Chicago-referens (17:e uppl.)

CHRISTIE, AGATHA. AT BERTRAM'S HOTEL. LONDON: HARPERCOLLINS PUBLISHERS, 2016.

MLA-referens (9:e uppl.)

CHRISTIE, AGATHA. AT BERTRAM'S HOTEL. HARPERCOLLINS PUBLISHERS, 2016.