Mackay, I. (2000). Asking questions (2nd.). Universities Press.
Chicago Style aipamenaMackay, Ian. Asking Questions. 2nd. Hyderabad: Universities Press, 2000.
MLA aipamenaMackay, Ian. Asking Questions. 2nd. Universities Press, 2000.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.