May, P. (2010). Complete PET Workbook without answers. Cambridge University Press.
Trích dẫn kiểu ChicagoMay, Peter. Complete PET Workbook Without Answers. Cambridge University Press, 2010.
Deismireacht MLAMay, Peter. Complete PET Workbook Without Answers. Cambridge University Press, 2010.
Rabhadh: D'fhéadfadh nach mbeadh na deismireachtaí seo 100% cruinn i gcónaí.