Ocean passages for the world. - Fourth edition. - England : The Hydrographer of the Navy, c1987. - xii, 314 pages : illustration ; 30 cm. - NP ; 136 . - N.P. ; 136. . LCCN: 89152519 Subjects--Topical Terms: Pilot guides. LC Class. No.: VK802 / .O25 1987 Dewey Class. No.: 623.89/22