Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (9ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.