Gaya APA
ALLOWAY, B, J. (1997).
Chemical principles of environmental polution Edisi 2 (Ed. 2).
London:
Chapman and Hall.
Gaya MLA
ALLOWAY, B., J..
"Chemical principles of environmental polution Edisi 2".
Ed. 2
London:
Chapman and Hall,
1997.
FAKULTAS TEKNIK.