APA
Nixon C., Tomlinson M., .Kids box teachers resource book 3. Inglaterra: Cambridge University Press.
Chicago
Nixon Caroline, Tomlinson Michael, .Kids box teachers resource book 3. Inglaterra: Cambridge University Press.
Harvard
Nixon C., Tomlinson M., .Kids box teachers resource book 3. Inglaterra: Cambridge University Press.
MLA
Nixon Caroline, Tomlinson Michael, .Inglaterra: Cambridge University Press. .