(2002). Air pollution (2nd ed.). Spon.
Chicago Style (17th ed.) CitationAir Pollution. 2nd ed. London: Spon, 2002.
MLA (9th ed.) CitationAir Pollution. 2nd ed. Spon, 2002.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.
(2002). Air pollution (2nd ed.). Spon.
Chicago Style (17th ed.) CitationAir Pollution. 2nd ed. London: Spon, 2002.
MLA (9th ed.) CitationAir Pollution. 2nd ed. Spon, 2002.