| | Book | Save | | 1 | Title: | Radio navigational aids 1947: marine direction-finding stations, radiobeacons, time signals, navigational warnings, distress signals, medical advice and quarantine, Loran, weather, and radio regulations for territorial waters
| | | | Creator: | United States Hydrographic Office. | | | | Publication: | U.S. Govt. Print. Off, Washington,1948. | | | | Notes: | "Corrected to January 1, 1947, including notice to mariners no. 52 of 1946"--Title page. Includes bibliographical references and index. | | | | Call #: | VK397 .U581 1947 | | | | Extent: | ix, 414 pages : maps (some folded), charts (some folded), tables, diagrams ; 24 cm. | | | | Subjects: | Radio in navigation | Navigation -- Safety measures | Aids to navigation
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