TY - BOOK ED - Great Britain. TI - Sight reduction tables for marine navigation Volume 4: Latitudes 45°-60°, inclusive ; HD605(4) SN - 9780707740142 (hbk) : PY - 1987/// CY - Taunton PB - Hydrographic Office KW - NAVIGATION AIDS KW - STAR SIGHT TABLES KW - CELESTIAL NAVIGATION N1 - "...these tables are identical with those published by the Defense Mapping Agency Hydrographic Center as Pub. No. 229..."p. ii; "NP 401(4)"--cover; "Admiralty charts and publications."--cover N2 - ".. designed to facilitate the practice of celestial navigation at sea by the Marcq Sainte Hilaire or intercept method." (preface). Intended for use with the Nautical Almanac ER -