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Gaya APA

SALVATO, N, L, &, F, J, &, P, S, &, J, A. (2009). Environmental Engineering . Indonesia: .

Gaya MLA

SALVATO, Nelson, L.NEMEROW, &, Franklin, J.AGARDY, &, Patrick, SULLIVAN, &, Joseph, A.. "Environmental Engineering". Indonesia: , 2009. Text.