Haughton, E. (1997). Why are some periods worse than others? Manila Bulletin.
Chicago (17e ed.) BronvermeldingHaughton, Emma. "Why Are Some Periods Worse than Others?" Manila Bulletin 1997.
MLA (9e ed.) BronvermeldingHaughton, Emma. "Why Are Some Periods Worse than Others?" Manila Bulletin, 1997.
Let op: Deze citaties zijn niet altijd 100% accuraat.