Navy, H, O, T.(1996).Admiralty List of Radio Signals Volume 3 Part 1 : Radio Weather Services and Navigational Warnings (Volume 3 Part 1).United Kingdom:Penerbit The Hydrographer of the Navy.
Gaya MLA
Navy, Hydrographer, Of, The."Admiralty List of Radio Signals Volume 3 Part 1 : Radio Weather Services and Navigational Warnings".Volume 3 Part 1United Kingdom:Penerbit The Hydrographer of the Navy,1996.Text.