Cugle, Charles Hurst Cugle's practical navigation / Charles Hurst Cugle ; revised by I. J. Stephens - 6th ed. - New York : E. P. Dutton, 1952 - xiii, 823 p. : tables, diagrs. ; 24cm. Subjects--Topical Terms: Earth sciencesAstronomy Subjects--Geographic Terms: Earth Dewey Class. No.: 527