APA (7th ed.) Citation

Robertson, I. (2011). Instruments of darkness (1st American ed.). Pamela Dorman Books/Viking.

Chicago Style (17th ed.) Citation

Robertson, Imogen. Instruments of Darkness. 1st American ed. New York: Pamela Dorman Books/Viking, 2011.

MLA (8th ed.) Citation

Robertson, Imogen. Instruments of Darkness. 1st American ed. Pamela Dorman Books/Viking, 2011.

Warning: These citations may not always be 100% accurate.