APA Style

McAllister, Margaret. (). Tree tops fiction : The Worst of the Vikings . : Oxford University Press.

Chicago Style

McAllister, Margaret. Tree tops fiction : The Worst of the Vikings. : Oxford University Press, . Text.

MLA Style

McAllister, Margaret. Tree tops fiction : The Worst of the Vikings. : Oxford University Press, . Text.

Turabian Style

McAllister, Margaret. Tree tops fiction : The Worst of the Vikings. : Oxford University Press, . Print.