Gaya APA

Coler, R, A. (1989). Water poluution biology; a laboratory / field handbook (1989). : Lancester :Technomic Publ.Co.,.

Gaya MLA

Coler, Robert, A. "Water poluution biology; a laboratory / field handbook". 1989 : Lancester :Technomic Publ.Co.,, 1989. Text.