APA
McConnell Duff Alan, . (1991). Tigers eye 3, units 25-35. London: Oxford University Press.
Chicago
McConnell Duff Alan, . 1991. Tigers eye 3, units 25-35. London: Oxford University Press.
Harvard
McConnell Duff Alan, . (1991). Tigers eye 3, units 25-35. London: Oxford University Press.
MLA
McConnell Duff Alan, . Tigers eye 3, units 25-35. London: Oxford University Press. 1991.