APA

Elangovan (R) ;Saseetharan (M K), .Unit Operations In Environmental Engineering. : .

Chicago

Elangovan (R) ;Saseetharan (M K), .Unit Operations In Environmental Engineering. : .

Harvard

Elangovan (R) ;Saseetharan (M K), .Unit Operations In Environmental Engineering. : .

MLA

Elangovan (R) ;Saseetharan (M K), .: . .