IALA maritime buoyage system : combined cardinal and lateral system / - 6th ed. - Taunton : Admiralty Publications , 2006. - 16 p. : col. ill.; 30 cm. - NP ; 735 . ISBN: 9780707740393 £ 7.15 Subjects--Topical Terms: Buoys Dewey Class. No.: 623.8944 / Un314