Gaya APA

Li, J., Bolton, B. (2009). The fly river, Papua New Guinea : environmental studies in on impacted tropical river system (buku 1, 2, 3) . Amsterdam: Elsevier.

Gaya MLA

Li, Jonathan., Bolton, Barrie. "The fly river, Papua New Guinea : environmental studies in on impacted tropical river system (buku 1, 2, 3)". Amsterdam: Elsevier, 2009. Text.