APA (7e ed.) Bronvermelding

Heyderman Emma E., May P. Peter, & Wyatt R. Rawdon. (2010). Complete PET: Teacher`s Book. Cambridge, Cambridge University Press, 2010.

Chicago (17e ed.) Bronvermelding

Heyderman Emma E., May P. Peter, en Wyatt R. Rawdon. Complete PET: Teacher`s Book. Cambridge, Cambridge University Press, 2010, 2010.

MLA (9e ed.) Bronvermelding

Heyderman Emma E., et al. Complete PET: Teacher`s Book. Cambridge, Cambridge University Press, 2010, 2010.