CLARK, R. (1989). Marine Pollution. Oxford Science Publications.
Lua i Stíl Chicago (17ú heag.)CLARK, R.B. Marine Pollution. Oxford Science Publications, 1989.
Lua MLA (8ú heag.)CLARK, R.B. Marine Pollution. Oxford Science Publications, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.