APA Style

Jennifer, (, B, B. (2008). Changing their Skies (Oxford Bookworms stage 2 (6,987 words, 700 headwor). Oxford, UK: Oxford University Press.

MLA Style

Jennifer, (retold, By), Bassett,. "Changing their Skies". Oxford Bookworms stage 2 (6,987 words, 700 headwor Oxford, UK: Oxford University Press, 2008. Printed Book.