Japan sewers clean up their act with manhole art. IN World News. Manila Bulletin.
Chicago (17e ed.) Bronvermelding"Japan Sewers Clean Up Their Act with Manhole Art. IN World News." Manila Bulletin .
MLA (9e ed.) Bronvermelding"Japan Sewers Clean Up Their Act with Manhole Art. IN World News." Manila Bulletin, .
Let op: Deze citaties zijn niet altijd 100% accuraat.