Heyderman Emma E., May P. Peter, & Wyatt R. Rawdon. (2010). Complete PET: Teacher`s Book. Cambridge, Cambridge University Press, 2010.
Chicagoスタイル(17版)引用形式Heyderman Emma E., May P. Peter, , Wyatt R. Rawdon. Complete PET: Teacher`s Book. Cambridge, Cambridge University Press, 2010, 2010.
MLA(9版)引用形式Heyderman Emma E., et al. Complete PET: Teacher`s Book. Cambridge, Cambridge University Press, 2010, 2010.
警告: この引用は必ずしも正確ではありません.