Pullman, P. (1995). Northern lights. Scholastic Children's Books.
Cita Chicago (17th ed.)Pullman, Philip. Northern Lights. London ; New York: Scholastic Children's Books, 1995.
Cita MLA (9th ed.)Pullman, Philip. Northern Lights. Scholastic Children's Books, 1995.
Atenció: Aquestes cites poden no estar 100% correctes.