APA (7th ed.) Citation

Powell, J., & Eldridge, J. (2004). Vikings. Ladybird books.

Chicago Style (17th ed.) Citation

Powell, Jillian, and Jim Eldridge. Vikings. London: Ladybird books, 2004.

MLA (9th ed.) Citation

Powell, Jillian, and Jim Eldridge. Vikings. Ladybird books, 2004.

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