APA (7th ed.) Citation

Roberts, N. (2004). Northern lights. G.P. Putnam's Sons.

Chicago Style (17th ed.) Citation

Roberts, Nora. Northern Lights. New York: G.P. Putnam's Sons, 2004.

MLA (9th ed.) Citation

Roberts, Nora. Northern Lights. G.P. Putnam's Sons, 2004.