Cita APA (7a ed.)

Ackroyd, P. (2004). Cities of blood. DK.

Cita Chicago Style (17a ed.)

Ackroyd, Peter. Cities of Blood. London: DK, 2004.

Cita MLA (9a ed.)

Ackroyd, Peter. Cities of Blood. DK, 2004.

警告：這些引文格式不一定是100％准確.