APA aipamena

Haughton, E. (1997). Why are some periods worse than others? Manila Bulletin.

Chicago Style aipamena

Haughton, Emma. "Why Are Some Periods Worse than Others?" Manila Bulletin 1997.

MLA aipamena

Haughton, Emma. "Why Are Some Periods Worse than Others?" Manila Bulletin, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.