APA
Redpath P., Phillips S., . (2007). Incredible English 4 : activity book. Oxford: Oxford University Press.
Chicago
Redpath Peter, Phillips Sarah, . 2007. Incredible English 4 : activity book. Oxford: Oxford University Press.
Harvard
Redpath P., Phillips S., . (2007). Incredible English 4 : activity book. Oxford: Oxford University Press.
MLA
Redpath Peter, Phillips Sarah, . Incredible English 4 : activity book. Oxford: Oxford University Press. 2007.