Ruttle, K., Brown, R., & Chatterton, M. (2001). Incy wincy spider. Cambridge University Press.
Chicago Style aipamenaRuttle, Kate, Richard Brown, and Martin Chatterton. Incy Wincy Spider. Cambridge: Cambridge University Press, 2001.
MLA aipamenaRuttle, Kate, et al. Incy Wincy Spider. Cambridge University Press, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.