Cita APA (7a ed.)

Yrsa Sigurðardóttir. (2013). The day is dark (1st U.S. ed.). Minotaur Books/Thomas Dunne Books.

Cita Chicago Style (17a ed.)

Yrsa Sigurðardóttir. The Day Is Dark. 1st U.S. ed. New York: Minotaur Books/Thomas Dunne Books, 2013.

Cita MLA (8a ed.)

Yrsa Sigurðardóttir. The Day Is Dark. 1st U.S. ed. Minotaur Books/Thomas Dunne Books, 2013.

Precaución: Estas citas no son 100% exactas.