McCall Smith, A. (2004). Portuguese irregular verbs. Mr.Kamal Ahmad/CEO.
Chicago Style (17th ed.) ZitazioaMcCall Smith, Alexander. Portuguese Irregular Verbs. Canada: Mr.Kamal Ahmad/CEO, 2004.
MLA (9th ed.) ZitazioaMcCall Smith, Alexander. Portuguese Irregular Verbs. Mr.Kamal Ahmad/CEO, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.