Anwar, N.(2011).Ballast Water Management 2011 Edition : Understanding the Regulations and the Various Treatment Technologies (Ed. 2).United Kingdom:Penerbit Witherby Seamanship International.
Gaya MLA
Anwar, Nadeem."Ballast Water Management 2011 Edition : Understanding the Regulations and the Various Treatment Technologies".Ed. 2United Kingdom:Penerbit Witherby Seamanship International,2011.Text.